Genesis 6:15

The ark was so large that when it floated, it likely pushed aside about 43,300 tons of water. This is similar to how much water a modern large cargo ship moves aside when it floats.

And this is the fashion--According to the description, the ark was not a ship, but an immense house in form and structure like the houses in the East, designed not to sail, but only to float. Assuming the cubit to be 21.888 inches, the ark would be five hundred forty-seven feet long, ninety-one feet two inches wide, and forty-seven feet two inches high.

Here it appears indeed that Noah found grace in the eyes of the Lord. God's favour to him was plainly intimated in what he said of him, Gen 6:8-10, where his name is mentioned five times in five lines, when once might have served to make the sense clear, as if the Holy Ghost took a pleasure in perpetuating his memory; but it appears much more in what he says to him in these verses - the informations and instructions here given him.
I. God here makes Noah the man of his counsel, communicating to him his purpose to destroy this wicked world by water. As, afterwards, he told Abraham his resolution concerning Sodom (Gen 18:17, Shall I hide from Abraham?) so here "Shall I hide from Noah the thing that I do, seeing that he shall become a great nation?" Note, The secret of the Lord is with those that fear him (Psa 25:14); it was with his servants the prophets (Amo 3:7), by a spirit of revelation, informing them particularly of his purposes; it is with all believers by a spirit of wisdom and faith, enabling them to understand and apply the general declarations of the written word, and the warnings there given. Now,
1. God told Noah, in general, that he would destroy the world (Gen 6:13): The end of all flesh has come before me; I will destroy them; that is, the ruin of this wicked world is decreed and determined; it has come, that is, it will come surely, and come quickly. Noah, it is likely, in preaching to his neighbours, had warned them, in general, of the wrath of God that they would bring upon themselves by their wickedness, and now God seconds his endeavours by a particular denunciation of wrath, that Noah might try whether this would work upon them. Hence observe, (1.) That God confirmeth the words of his messengers, Isa 44:26. (2.) That to him that has, and uses what he has for the good of others, more shall be given, more full instructions.
2. He told him, particularly, that he would destroy the world by a flood of waters: And behold, I, even I, do bring a flood of waters upon the earth, Gen 6:17. God could have destroyed all mankind by the sword of an angel, a flaming sword turning every way, as he destroyed all the first-born of the Egyptians and the camp of the Assyrians; and then there needed no more than to set a mark upon Noah and his family for their preservation. But God chose to do it by a flood of waters, which should drown the world. The reasons, we may be sure, were wise and just, though to us unknown. God has many arrows in his quiver, and he may use which he please: as he chooses the rod with which he will correct his children, so he chooses the sword with which he will cut off his enemies. Observe the manner of expression: "I, even I, do bring a flood; I that am infinite in power, and therefore can do it, infinite in justice, and therefore will do it." (1.) It intimates the certainty of the judgment: I, even I, will do it. That cannot but be done effectually which God himself undertakes the doing of. See Job 11:10. (2.) It intimates the tendency of it to God's glory and the honour of his justice. Thus he will be magnified and exalted in the earth, and all the world shall be made to know that he is the God to whom vengeance belongs; methinks the expression here is somewhat like that, Isa 1:24, Ah, I will ease me of mine adversaries.
II. God here makes Noah the man of his covenant, another Hebrew periphrasis of a friend (Gen 6:18): But with thee will I establish my covenant. 1. The covenant of providence, that the course of nature shall be continued to the end of time, notwithstanding the interruption which the flood would give to it. This promise was immediately made to Noah and his sons, Gen 9:8, etc. They were as trustees for all this part of the creation, and a great honour was thereby put upon him and his. 2. The covenant of grace, that God would be to him a God and that out of his seed God would take to himself a people. Note, (1.) When God makes a covenant, he establishes it, he makes it sure, he makes it good; his are everlasting covenants. (2.) The covenant of grace has in it the recompence of singular services, and the fountain and foundation of all distinguishing favours; we need desire no more, either to make up our losses for God or to make up a happiness for us in God, than to have his covenant established with us.
III. God here makes Noah a monument of sparing mercy, by putting him in a way to secure himself in the approaching deluge, that he might not perish with the rest of the world: I will destroy them, says God, with the earth, Gen 6:13. "But make thee an ark; I will take care to preserve thee alive." Note, Singular piety shall be recompensed with distinguishing salvations, which are in a special manner obliging. This will add much to the honour and happiness of glorified saints, that they shall be saved when the greatest part of the world is left to perish. Now,
1. God directs Noah to make an ark, Gen 6:14-15. This ark was like the hulk of a ship, fitted not to sail upon the waters (there was no occasion for that, when there should be no shore to sail to), but to float upon the waters, waiting for their fall. God could have secured Noah by the ministration of angels, without putting him to any care, or pains, or trouble, himself; but he chose to employ him in making that which was to be the means of his preservation, both for the trial of his faith and obedience and to teach us that none shall be saved by Christ but those only that work out their salvation. We cannot do it without God, and he will not without us. Both the providence of God, and the grace of God, own and crown the endeavours of the obedient and diligent. God gave him very particular instructions concerning this building, which could not but be admirably well fitted for the purpose when Infinite Wisdom itself was the architect. (1.) It must be made of gopher-wood. Noah, doubtless, knew what sort of wood that was, though we now do not, whether cedar, or cypress, or what other. (2.) He must make it three stories high within. (3.) He must divide it into cabins, with partitions, places fitted for the several sorts of creatures, so as to lose no room. (4.) Exact dimensions were given him, that he might make it proportionable, and might have room enough in it to answer the intention and no more. Note, Those that work for God must take their measures from him and carefully observe them. Note, further, It is fit that he who appoints us our habitation should fix the bounds and limits of it. (5.) He must pitch it within and without - without, to shed off the rain, and to prevent the water from soaking in - within, to take away the bad smell of the beasts when kept close. Observe, God does not bid him paint it, but pitch it. If God gives us habitations that are safe, and warm, and wholesome, we are bound to be thankful, though they are not magnificent or nice. (6.) He must make a little window towards the top, to let in light, and (some think) that through that window he might behold the desolations to be made in the earth. (7.) He must make a door in the side of it, by which to go in and out.
2. God promises Noah that he and his shall be preserved alive in the ark (Gen 6:18): Thou shalt come into the ark. Note, What we do in obedience to God, we ourselves are likely to have the comfort and benefit of. If thou be wise, thou shalt be wise for thyself. Nor was he himself only saved in the ark, but his wife, and his sons, and his sons' wives. Observe, (1.) The care of good parents; they are solicitous not only for their own salvation, but for the salvation of their families, and especially their children. (2.) The happiness of those children that have godly parents. Their parents' piety often procures them temporal salvation, as here; and it furthers them in the way to eternal salvation, if they improve the benefit of it.
IV. God here makes Noah a great blessing to the world, and herein makes him an eminent type of the Messiah, though not the Messiah himself, as his parents expected, Gen 5:29. 1. God made him a preacher to the men of that generation. As a watchman, he received the word from God's mouth, that he might give them warning, Eze 3:17. Thus, while the long-suffering of God waited, by his Spirit in Noah, he preached to the old world, who, when Peter wrote, were spirits in prison (Pe1 3:18-20), and herein he was a type of Christ, who, in a land and age wherein all flesh had corrupted their way, went about preaching repentance and warning men of a deluge of wrath coming. 2. God made him a saviour to the inferior creatures, to keep the several kinds of them from perishing and being lost in the deluge, Gen 6:19-21. This was a great honour put upon him, that not only in him the race of mankind should be kept up, and that from him should proceed a new world, the church, the soul of the world, and Messiah, the head of that church, but that he should be instrumental to preserve the inferior creatures, and so mankind should in him acquire a new title to them and their service. (1.) He was to provide shelter for them, that they might not be drowned. Two of every sort, male and female, he must take with him into the ark; and lest he should make any difficulty of gathering them together, and getting them in, God promises (Gen 6:20) that they shall of their own accord come to him. He that makes the ox to know his owner and his crib then made him know his preserver and his ark. (2.) He was to provide sustenance for them, that they might not be starved, Gen 6:21. He must victual his ship according to the number of his crew, that great family which he had now the charge of, and according to the time appointed for his confinement. Herein also he was a type of Christ, to whom it is owing that the world stands, by whom all things consist, and who preserves mankind from being totally cut off and ruined by sin; in him the holy seed is saved alive, and the creation rescued from the vanity under which it groans. Noah saved those whom he was to rule, so does Christ, Heb 5:9.

Make thee an ark of gopher wood. Here follows the command to build the ark, in which God wonderfully proved the faith and obedience of his servant. Concerning its structure, there is no reason why we should anxiously inquire, except so far as our own edification is concerned. First, the Jews are not agreed among themselves respecting the kind of wood of which it was made. Some explain the word gopher to be the cedar; others, the fir-tree; others, the pine. They differ also respecting the stories; because many think that the sink was in the fourth place, which might receive the refuse and other impurities. Others make five chambers in a triple floor, of which they assign the highest to the birds. There are those who suppose that it was only three stories in height; but that these were separated by intermediate divisions. Besides, they do not agree about the window: to some it appears that there was not one window only, but many. Some say they were open to receive air; but others contend that they were only made for the sake of light, and therefore were covered over with crystal, and lined with pitch. To me it seems more probable, that there was only one, not cut out for the sake of giving light; but to remain shut, unless occasion required it to be opened, as we shall see afterwards. Further, that there was a triple story, and rooms separated in a manner to us unknown. The question respecting its magnitude is more difficult. For, formerly, certain profane men ridiculed Moses, as having imagined that so vast a multitude of animals was shut up in so small a space; a third part of which would scarcely contain four elephants. Origin solves this question, by saying that a geometrical cubit was referred to by Moses, which is six times greater than the common one; to whose opinion Augustine assents in his fifteenth book on the City of God,' and his first book of Questions on Genesis.' I grant what they allege, that Moses, who had been educated in all the science of the Egyptians, was not ignorant of geometry; but since we know that Moses everywhere spoke in a homely style, to suit the capacity of the people, and that he purposely abstained from acute disputations, which might savor of the schools and of deeper learning; I can by no means persuade myself, that, in this place, contrary to his ordinary method, he employed geometrical subtlety. Certainly, in the first chapter, he did not treat scientifically of the stars, as a philosopher would do; but he called them, in a popular manner, according to their appearance to the uneducated, rather than according to truth, "two great lights." Thus we may everywhere perceive that he designates things, of every kind by their accustomed names. But what was then the measure of the cubit I know not; it is, however, enough for me, that God (whom, without controversy, I acknowledge to be the chief builder of the ark) well knew what things the place which he described to his servant was capable of holding. If you exclude the extraordinary power of God from this history, you declare that mere fables are related. But, by us, who confess that the remains of the world were preserved by an incredible miracle, it ought not to be regarded as an absurdity, that many wonderful things are here related, in order that hence the secret and incomprehensible power of God, which far surpasses all our senses, may be the more clearly exhibited. Porphyry or some other caviller, [275] may object, that this is fabulous, because the reason of it does not appear; or because it is unusual; or because it is repugnant to the common order of nature. But I make the rejoinder; that this entire narration of Moses, unless it were replete with miracles would be colds and trifling, and ridiculous. He, however, who will reflect aright upon the profound abyss of Divine omnipotence in this history, will rather sink in reverential awe, than indulge in profane mockery. I purposely pass over the allegorical application which Augustine makes of the figure of the ark to the body of Christ, both in his fifteenth book of The City of God,' and his twelfth book against Faustus; because I find there scarcely anything solid. Origin still more boldly sports with allegories: but there is nothing more profitable, than to adhere strictly to the natural treatment of things. That the ark was an image of the Church is certain, from the testimony of Peter, (1 Peter 3:21;) but to accommodate its several parts to the Church, is by no means suitable, as I shall again show, in its proper place.

Thou shalt make - the length of the ark - three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits - Allowing the cubit, which is the length from the elbow to the tip of the middle finger, to be eighteen inches, the ark must have been four hundred and fifty feet in length, seventy-five in breadth, and forty-five in height. But that the ancient cubit was more than eighteen inches has been demonstrated by Mr. Greaves, who traveled in Greece, Palestine, and Egypt, in order to be able to ascertain the weights, moneys, and measures of antiquity. He measured the pyramids in Egypt, and comparing the accounts which Herodotus, Strabo, and others, give of their size, he found the length of a cubit to be twenty-one inches and eight hundred and eighty-eight decimal parts out of a thousand, or nearly twenty-two inches. Hence the cube of a cubit is evidently ten thousand four hundred and eighty-six inches. And from this it will appear that the three hundred cubits of the ark's length make five hundred and forty-seven feet; the fifty for its breadth, ninety-one feet two inches; and the thirty for its height, fifty-four feet eight inches. When these dimensions are examined, the ark will be found to be a vessel whose capacity was more than sufficient to contain all persons and animals said to have been in it, with sufficient food for each for more than twelve months. This vessel Dr. Arbuthnot computes to have been eighty-one thousand and sixty-two tons in burden.
As many have supposed the capacity of the ark to have been much too small for the things which were contained in it, it will be necessary to examine this subject thoroughly, that every difficulty may be removed. The things contained in the ark, besides the eight persons of Noah's family, were one pair of all unclean animals, and seven pairs of all clean animals with provisions for all sufficient for twelve months.
At the first view the number of animals may appear so immense that no space but the forest could be thought sufficient to contain them. If, however, we come to a calculation, the number of the different genera or kinds of animals will be found much less than is generally imagined. It is a question whether in this account any but the different genera of animals necessary to be brought into the ark should be included Naturalists have divided the whole system of zoology into Classes and Orders, containing genera and species. There are six classes thus denominated:
1. Mammalia;
2. Aves;
3. Amphibia;
4. Pisces;
5. Insectae;
6. Vermes.
With the three last of these, viz., fishes, insects, and worms, the question can have little to do.
The first Class, Mammalia, or animals with teats, contains seven orders, and only forty-three genera if we except the seventh order, cete, i.e. all the whale kind, which certainly need not come into this account. The different species in this class amount, the cete excluded, to five hundred and forty-three.
The second Class, Aves, birds, contains six orders, and only seventy-four genera, if we exclude the third order, anseres, or web-footed fowls, all of which could very well live in the water. The different species in this class, the anseres excepted, amount to two thousand three hundred and seventy-two.
The third Class, Amphibia, contains only two orders, reptiles and serpents; these comprehend ten genera, and three hundred and sixty-six species, but of the reptiles many could live in the water, such as the tortoise, frog, etc. Of the former there are thirty-three species, of the latter seventeen, which excluded reduce the number to three hundred and sixteen. The whole of these would occupy but little room in the ark, for a small portion of earth, etc., in the hold would be sufficient for their accommodation.
Bishop Wilkins, who has written largely and with his usual accuracy on this subject, supposes that quadrupeds do not amount to one hundred different kinds, nor birds which could not live in the water to two hundred. Of quadrupeds he shows that only seventy-two species needed a place in the ark, and the birds he divides into nine classes, including in the whole one hundred and ninety-five kinds, from which all the web-footed should be deducted, as these could live in the water.
He computes all the carnivorous animals equivalent, as to the bulk of their bodies and food, to twenty-seven wolves; and all the rest to one hundred and eighty oxen. For the former he allows one thousand eight hundred and twenty-five sheep for their annual consumption; and for the latter, one hundred and nine thousand five hundred cubits of hay: these animals and their food will be easily contained In the two first stories, and much room to spare; as to the third story, no person can doubt its being sufficient for the fowls, with Noah and his family.
One sheep each day he judges will be sufficient for six wolves; and a square cubit of hay, which contains forty-one pounds, as ordinarily pressed in our ricks, will he amply sufficient for one ox in the day. When the quantum of room which these animals and their provender required for one year, is compared with the capacity of the ark, we shall be led to conclude, with the learned bishop, "that of the two it is more difficult to assign a number and bulk of necessary things to answer to the capacity of the ark, than to find sufficient room for the several species of animals and their food already known to have been there." This he attributes to the imperfection of our lists of animals, especially those of the unknown parts of the earth; and adds, "that the most expert mathematicians at this day," and he was one of the first in Europe, "could not assign the proportion of a vessel better accommodated to the purpose than is here done;" and concludes thus: "The capacity of the ark, which has been made an objection against Scripture, ought to be esteemed a confirmation of its Divine authority; since, in those ruder ages men, being less versed in arts and philosophy, were more obnoxious to vulgar prejudices than now, so that had it been a human invention it would have been contrived, according to those wild apprehensions which arise from a confused and general view of things, as much too big as it has been represented too little." See Bishop Wilkins's Essay towards a Philosophical Character and Language.

And this is the fashion which thou shall make it of,.... The form and size of it, its length, breadth, and height, as follows:

the length of the ark shall be three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits; which some interpret of geometrical cubits, each of which contained six ordinary cubits; others of sacred cubits, which were larger by an hand's breadth than the common cubit; but the general opinion of learned men now is, that they were common cubits of eighteen inches long; and by the geometrical calculations made by them it is found, that the ark of such dimensions was abundantly sufficient to contain Noah, and his family, and the various creatures, and all necessary provisions for them (q). But if the Jewish and Egyptian cubit, the cubit of the Scriptures, as Dr. Cumberland (r) has shown it to be, consisted of twenty one inches and upwards, the ark according to them must be very near twice as great, and so more convenient for all the ends to which it was designed; for, as he observes, the cube of such a cubit is very near double to the cube of eighteen inches, and therefore so must the capacity be. (Noah's Ark was the largest sea-going vessel ever built, until, the late nineteenth century when giant metal ships were first constructed. The Ark was approximately 450 feet by seventy five feet; but as late as 1858"the largest vessel of her type in the world was the P&O liner, "Himalaya", 240 feet by thirty five feet...''In that year, Isambard K. Brunel produced the "Great Eastern", 692 feet by 83 feet by 30 feet of approximately 19000 tons ... five times the tonnage of any ship then afloat. So vast was Brunel's leap that even forty years later in an age of fierce competition the largest liners being built were still smaller than the "Great Eastern" ... (s). Editor.)

(q) Vid. Buteonem de Area Noe, Hostum in fabricam Areae Noc, & Poli Synopsin. Scheuchzer, ut supra, (Physic. Sacr. vol. 1.) pp. 37, 38. (r) Of Scripture Weights and Measures, ch. 2. p. 56, 57. (s) The World that Perished, John C. Witcomb, published by Baker Book House, 1988, p. 22.

This is the fashion, or, this is the measure, or the manner according to

which thou shalt make it; and it was a just and regular proportion, the length being six times more than the breadth, and ten times more than the height. There is no need to understand this of geometrical cubits, which are said to have contained nine ordinary cubits; nor of sacred cubits, which were a hand’ s breadth longer than the ordinary, ; nor to suppose the stature of men at that time to have been generally larger, and consequently their cubit much longer. For the ordinary cubit consisting of a common foot and a half, is sufficient for the containing of all the kinds of living creatures and their provisions, which was to be put into the ark, as hath been at large demonstrated by learned men. Nor is there any considerable difficulty in the point, but what is made by the ignorance of infidels, and aggravated by their malice against the Holy Scriptures; especially if these things be considered:

1. That the differing kinds of beasts and birds, which unlearned men fancy to be innumerable, are observed by the learned, who have particularly searched into them, and written of them, to be little above three hundred, whereof the far greatest part are but small; and many of these which now are thought to differ in kind, in their first original were but of one sort, though now they be so greatly altered in their shape and qualifies, which might easily arise from the diversity of their climate and food, and other circumstances, and from the promiscuous conjunctions of those lawless creatures.

2. That the brute creatures, when they were enclosed in the ark, where they were idle, and constantly under a kind of horror and amazement, would be contented with far less provisions, and those of another sort than they were accustomed to, and such as might lie in less room, as hay, and the fruits of the earth. God also, who altered their natures, and made the savage creatures mild and gentle, might by the same powerful providence moderate their appetites, or, if he pleased, have increased their provision whilst they did eat it, as afterwards Christ did by the loaves. So vain and idle are the cavils of wanton wits concerning the incapacity of the ark for the food of so many beasts.

3. That supposing the ravenous creatures did feed upon flesh, here is also space enough and to spare for a sufficient number of sheep, for their food for a whole year, as upon computation will easily appear; there being not two thousand sheep necessary for them, and the ark containing no less than four hundred and fifty thousand cubits in it. But of this matter more may be seen in my Latin Synopsis.

Gen 6:9-12 contain a description of Noah and his contemporaries; Gen 6:13-22, the announcement of the purpose of God with reference to the flood.
Gen 6:9
"Noah, a righteous man, was blameless among his generations:" righteous in his moral relation to God; blameless (τέλειος, integer) in his character and conduct. דּרות, γενεαί, were the generations or families "which passed by Noah, the Nestor of his time." His righteousness and integrity were manifested in his walking with God, in which he resembled Enoch (Gen 5:22).
Gen 6:10-12
In Gen 6:10-12, the account of the birth of his three sons, and of the corruption of all flesh, is repeated. This corruption is represented as corrupting the whole earth and filling it with wickedness; and thus the judgment of the flood is for the first time fully accounted for. "The earth was corrupt before God (Elohim points back to the previous Elohim in Gen 6:9)," it became so conspicuous to God, that He could not refrain from punishment. The corruption proceeded from the fact, that "all flesh" - i.e., the whole human race which had resisted the influence of the Spirit of God and become flesh (see Gen 6:3) - "had corrupted its way." The term "flesh" in Gen 6:12 cannot include the animal world, since the expression, "corrupted its way," is applicable to man alone. The fact that in Gen 6:13 and Gen 6:17 this term embraces both men and animals is no proof to the contrary, for the simple reason, that in Gen 6:19 "all flesh" denotes the animal world only, an evident proof that the precise meaning of the word must always be determined from the context.
Gen 6:13
"The end of all flesh is come before Me." אל בּוא, when applied to rumours, invariably signifies "to reach the ear" (vid., Gen 18:21; Exo 3:9; Est 9:11); hence לפני בּא in this case cannot mean a me constitutus est (Ges.). קץ, therefore, is not the end in the sense of destruction, but the end (extremity) of depravity or corruption, which leads to destruction. "For the earth has become full of wickedness מפּגיהם," i.e., proceeding from them, "and I destroy them along with the earth." Because all flesh had destroyed its way, it should be destroyed with the earth by God. The lex talionis is obvious here.
Gen 6:14-15
Noah was exempted from the extermination. He was to build an ark, in order that he himself, his family, and the animals might be preserved. תּבה, which is only used here and in Exo 2:3, Exo 2:5, where it is applied to the ark in which Moses was placed, is probably an Egyptian word: the lxx render it κίβωτος here, and θίβη in Exodus; the Vulgate arca, from which our word ark is derived. Gopher-wood (ligna bituminata; Jerome) is most likely cypress. The ἁπ. λεγ. gopher is related to כּפר, resin, and κυπάρισσος; it is no proof to the contrary that in later Hebrew the cypress is called berosh, for gopher belongs to the pre-Hebraic times. The ark was to be made cells, i.e., divided into cells, קנּים (lit., nests, niduli, mansiunculae), and pitched (כּפר denom. from כּפר) within and without with copher, or asphalte (lxx ἄσφαλτος, Vulg. bitumen). On the supposition, which is a very probable one, that the ark was built in the form not of a ship, but of a chest, with flat bottom, like a floating house, as it was not meant for sailing, but merely to float upon the water, the dimensions, 300 cubits long, 50 broad, and 30 high, give a superficial area of 15,000 square cubits, and a cubic measurement of 450,000 cubits, probably to the ordinary standard, "after the elbow of a man" (Deu 3:11), i.e., measured from the elbow to the end of the middle finger.
Gen 6:16
"Light shalt thou make to the ark, and in a cubit from above shalt thou finish it." As the meaning light for צהר is established by the word צהרים, "double-light" or mid-day, the passage can only signify that a hole or opening for light and air was to be so constructed as to reach within a cubit of the edge of the roof. A window only a cubit square could not possibly be intended; for צהר is not synonymous with חלּון (Gen 8:6), but signifies, generally, a space for light, or by which light could be admitted into the ark, and in which the window, or lattice for opening and shutting, could be fixed; though we can form no distinct idea of what the arrangement was. The door he was to place in the side; and to make "lower, second, and third (sc., cells)," i.e., three distinct stories.
(Note: As the height of the ark was thirty cubits, the three stories of cells can hardly have filled the entire space, since a room ten cubits high, or nine cubits if we deduct the thickness of the floors, would have been a prodigality of space beyond what the necessities required. It has been conjectured that above or below these stories there was space provided for the necessary supplies of food and fodder. At the same time, this is pure conjecture, like every other calculation, not only as to the number and size of the cells, but also as to the number of animals to be collected and the fodder they would require. Hence every objection that has been raised to the suitability of the structure, and the possibility of collecting all the animals in the ark and providing them with food, is based upon arbitrary assumptions, and should be treated as a perfectly groundless fancy. As natural science is still in the dark as to the formation of species, and therefore not in a condition to determine the number of pairs from which all existing species are descended, it is ridiculous to talk, as Pfaff and others do, of 2000 species of mammalia, and 6500 species of birds, which Noah would have had to feed every day.)
Gen 6:17-21
Noah was to build this ark, because God was about to bring a flood upon the earth, and would save him, with his family, and one pair of every kind of animal. מבּוּל, (the flood), is an archaic word, coined expressly for the waters of Noah (Isa 54:9), and is used nowhere else except Psa 29:10. הארץ על מים is in apposition to mabbul: "I bring the flood, waters upon the earth, to destroy all flesh, wherein is a living breath" (i.e., man and beast). With Noah, God made a covenant. On בּרית see Gen 15:18. As not only the human race, but the animal world also was to be preserved through Noah, he was to take with him into the ark his wife, his sons and their wives, and of every living thing, of all flesh, two of every sort, a male and a female, to keep them alive; also all kinds of food for himself and family, and for the sustenance of the beasts.
Gen 6:22
"Thus did Noah, according to all that God commanded him" (with regard to the building of the ark). Cf. Heb 11:7.