Genesis 9:12

In the Bible, covenants are frequently confirmed by some sort of sign (for example, 17:11; Exodus 31:13, 17; Luke 22:20).

In God's second speech after the great flood, he promises to protect and preserve creation.

Whoso sheddeth man's blood . . . for in the image of God made he man--It is true that image has been injured by the fall, but it is not lost. In this view, a high value is attached to the life of every man, even the poorest and humblest, and an awful criminality is involved in the destruction of it.

Articles of agreement among men are usually sealed, that the covenants may be the more solemn, and the performances of the covenants the more sure, to mutual satisfaction. God therefore, being willing more abundantly to show to the heirs of promise the immutability of his councils, has confirmed his covenant by a seal (Heb 6:17), which makes the foundations we build on stand sure, Ti2 2:19. The seal of this covenant of nature was natural enough; it was the rainbow, which, it is likely, was seen in the clouds before, when second causes concurred, but was never a seal of the covenant till now that it was made so by a divine institution. Now, concerning this seal of the covenant, observe, 1. This seal is affixed with repeated assurances of the truth of that promise of which it was designed to be the ratification: I do set my bow in the cloud (Gen 9:23); it shall be seen in the cloud (Gen 9:14), that the eye may affect the heart and confirm the faith; and it shall be the token of the covenant (Gen 9:12, Gen 9:13), and I will remember my covenant, that the waters shall no more become a flood, Gen 9:15. Nay, as if the Eternal Mind needed a memorandum, I will look upon it, that I may remember the everlasting covenant, Gen 9:16. Thus here is line upon line, that we might have sure and strong consolation who have laid hold of this hope. 2. The rainbow appears when the clouds are most disposed to wet, and returns after the rain; when we have most reason to fear the rain prevailing, then God shows this seal of the promise that it shall not prevail. Thus God obviates our fears with such encouragements as are both suitable and seasonable. 3. The thicker the cloud the brighter the bow in the cloud. Thus, as threatening afflictions abound, encouraging consolations much more abound, Co2 1:5. 4. The rainbow appears when one part of the sky is clear, which intimates mercy remembered in the midst of wrath; and the clouds are hemmed as it were with the rainbow, that they may not overspread the heavens, for the bow is coloured rain or the edges of a cloud gilded. 5. The rainbow is the reflection of the beams of the sun, which intimates that all the glory and significancy of the seals of the covenant are derived from Christ the Sun of righteousness, who is also described with a rainbow about his throne (Rev 4:3), and a rainbow upon his head (Rev 10:1), which intimates, not only his majesty, but his mediatorship. 6. The rainbow has fiery colours in it, to signify that though God will not again drown the world, yet, when the mystery of God shall be finished, the world shall be consumed by fire. 7. A bow bespeaks terror, but this bow has neither string nor arrow, as the bow ordained against the persecutors has (Psa 7:12, Psa 7:13), and a bow alone will do little execution. It is a bow, but it is directed upwards, not towards the earth; for the seals of the covenant were intended to comfort, not to terrify. 8. As God looks upon the bow, that he may remember the covenant, so should we, that we also may be ever mindful of the covenant, with faith and thankfulness.

This is the token of the covenant. A sign is added to the promise, in which is exhibited the wonderful kindness of God; who, for the purpose of confirming our faith in his word, does not disdain to use such helps. And although we have more fully discussed the use of signs in Genesis 2:1, yet we must briefly maintain, from these words of Moses, that it is wrong to sever signs from the word. By the word, I mean not that of which Papists boast; whereby they enchant bread, wine, water, and oil, with their magical whisperings; but that which may strengthen faith: according no the Lord here plainly addresses holy Noah and his sons; he then annexes a seal, for the sake of assurance. Wherefore, if the sacrament be wrested from the word, it ceases to be what it is called. It must, I say, be a vocal sign, in order that it may retain its force, and not degenerate from its nature. And not only is that administration of sacraments in which the word of God is silent, vain and ludicrous; but it draws with it pure satanic delusions. Hence we also infer, that from the beginning, it was the peculiar property of sacraments, to avail for the confirmation of faith. For certainly, in the covenant that promise is included to which faith ought to respond. It appears to some absurd, that faith should be sustained by such helps. But they who speak thus do not, in the first place, reflect on the great ignorance and imbecility of our minds; nor do they, secondly, ascribe to the working of the secret power of the Spirit that praise which is due. It is the work of God alone to begin and to perfect faith; but he does it by such instruments as he sees good; the free choice of which is in his own power.

Whoso sheddeth man's blood, by man shall his blood - Hence it appears that whoever kills a man, unless unwittingly, as the Scripture expresses it, shall forfeit his own life.
A man is accused of the crime of murder; of this crime he is guilty or he is not: if he be guilty of murder he should die; if not, let him be punished according to the demerit of his crime; but for no offense but murder should he lose his life. Taking away the life of another is the highest offense that can be committed against the individual, and against society; and the highest punishment that a man can suffer for such a crime is the loss of his own life. As punishment should be ever proportioned to crimes, so the highest punishment due to the highest crime should not be inflicted for a minor offense. The law of God and the eternal dictates of reason say, that if a man kill another, the loss of his own life is at once the highest penalty he can pay, and an equivalent for his offense as far as civil society is concerned. If the death of the murderer be the highest penalty he can pay for the murder he has committed, then the infliction of this punishment for any minor offense is injustice and cruelty; and serves only to confound the claims of justice, the different degrees of moral turpitude and vice, and to render the profligate desperate: hence the adage so frequent among almost every order of delinquents, "It is as good to be hanged for a sheep as a lamb;" which at once marks their desperation, and the injustice of those penal laws which inflict the highest punishment for almost every species of crime. When shall a wise and judicious legislature see the absurdity and injustice of inflicting the punishment of death for stealing a sheep or a horse, forging a twenty shillings' note, and Murdering A Man; when the latter, in its moral turpitude and ruinous consequences, infinitely exceeds the others?* (* On this head the doctor's pious wish has been realized since this paragraph was written. - Publishers)

And God said, this is the token of the covenant which I make between me and you,.... Meaning the bow in the cloud, and which might be formed in the cloud at this time, that Noah might see it, and know it when he saw it again, and seems to be pointed unto: "this is the token"; or sign of the covenant made between God and Noah, and his sons:

and every living creature that is with you, for perpetual generations; which more clearly shows and proves, that this covenant reaches to all creatures that then were, or should be in all ages, to the end of the world.

This is the token, i.e. the bow mentioned in , I appoint to you for a sensible sign and evidence, to assure you that I shall perform this covenant or promise.

To give Noah and his sons a firm assurance of the prosperous continuance of the human race, God condescended to establish a covenant with them and their descendants, and to confirm this covenant by a visible sign for all generations. בּרית הקים is not equivalent to בּרית כּרת; it does not denote the formal conclusion of an actual covenant, but the "setting up of a covenant," or the giving of a promise possessing the nature of a covenant. In summing up the animals in Gen 9:10, the prepositions are accumulated: first בּ embracing the whole, then the partitive מן restricting the enumeration to those which went out of the ark, and lastly ל yl, "with regard to," extending it again to every individual. There was a correspondence between the covenant (Gen 9:11) and the sign which was to keep it before the sight of men (Gen 9:12): "I give (set) My bow in the cloud" (Gen 9:13). When God gathers (ענן Gen 9:14, lit., clouds) clouds over the earth, "the bow shall be seen in the cloud," and that not for man only, but for God also, who will look at the bow, "to remember His everlasting covenant." An "everlasting covenant" is a covenant "for perpetual generations," i.e., one which shall extend to all ages, even to the end of the world. The fact that God Himself would look at the bow and remember His covenant, was "a glorious and living expression of the great truth, that God's covenant signs, in which He has put His promises, are real vehicles of His grace, that they have power and essential worth not only with men, but also before God" (O. v. Gerlach). The establishment of the rainbow as a covenant sign of the promise that there should be no flood again, presupposes that it appeared then for the first time in the vault and clouds of heaven. From this it may be inferred, not that it did not rain before the flood, which could hardly be reconciled with Gen 2:5, but that the atmosphere was differently constituted; a supposition in perfect harmony with the facts of natural history, which point to differences in the climate of the earth's surface before and after the flood. The fact that the rainbow, that "coloured splendour thrown by the bursting forth of the sun upon the departing clouds," is the result of the reciprocal action of light, and air, and water, is no disproof of the origin and design recorded here. For the laws of nature are ordained by God, and have their ultimate ground and purpose in the divine plan of the universe which links together both nature and grace. "Springing as it does from the effect of the sun upon the dark mass of clouds, it typifies the readiness of the heavenly to pervade the earthly; spread out as it is between heaven and earth, it proclaims peace between God and man; and whilst spanning the whole horizon, it teaches the all-embracing universality of the covenant of grace" (Delitzsch).