Genesis 20:10

Abraham received rebukes from Abimelech and God (compare 12:17–19). Abimelech was upset because Abraham's lie made him guilty of this serious sin (see study note on 20:3–7). Abimelech understood that taking a married woman into his harem (a group of wives and concubines) was wrong.

• This second "sister story" in Genesis (compare 12:10–20) happened just before Sarah became pregnant with Isaac (chapter 21). In both instances, God protected Abraham and Sarah's marriage to keep it pure for the covenant promises. To be part of God's plan, his people must separate from worldly corruption.

• This story happened in the promised land. It showed Israel how God intervened in people's lives to fulfill his plan. He protected them from threats from other tribes. He used his chosen people to mediate his relationship with other nations.

• By preventing adultery from destroying Abraham's marriage, God reminded the Israelites not to marry those who would lead them away from the Lord (Ezra 9:1–4; Nehemiah 13:23–27; Malachi 2:10–17). They should not allow any chance for temptation. Adultery would eventually destroy the covenant and the people.

Then Abimelech called Abraham, and said . . . What hast thou done?--In what a humiliating plight does the patriarch now appear--he, a servant of the true God, rebuked by a heathen prince. Who would not rather be in the place of Abimelech than of the honored but sadly offending patriarch! What a dignified attitude is that of the king--calmly and justly reproving the sin of the patriarch, but respecting his person and heaping coals of fire on his head by the liberal presents made to him.

Abimelech, being thus warned of God in a dream, takes the warning, and, as one truly afraid of sin and its consequences, he rises early to obey the directions given him.
I. He has a caution for his servants, Gen 20:8. Abraham himself could not be more careful than he was to command his household in this matter. Note, Those whom God has convinced of sin and danger ought to tell others what God has done for their souls, that they also may be awakened and brought to a like holy fear.
II. He has a chiding for Abraham. Observe,
1. The serious reproof which Abimelech gave to Abraham, Gen 20:9, Gen 20:10. His reasoning with Abraham upon this occasion was very strong, and yet very mild. Nothing could be said better; he does not reproach him, nor insult over him, does not say, "Is this your profession? I see, though you will not swear, you will lie. If these be prophets, I will beg to be freed from the sight of them:" but he fairly represents the injury Abraham had done him, and calmly signifies his resentment of it. (1.) He calls that sin which he now found he had been in danger of a great sin. Note, Even the light of nature teaches men that the sin of adultery is a very great sin: be it observed, to the shame of many who call themselves Christians, and yet make a light matter of it. (2.) He looks upon it that both himself and his kingdom would have been exposed to the wrath of God if he had been guilty of this sin, though ignorantly. Note, The sins of kings often prove the plagues of kingdoms; rulers should therefore, for their people's sake, dread sin. (3.) He charges Abraham with doing that which was not justifiable, in disowning his marriage. This he speaks of justly, and yet tenderly; he does not call him a liar and cheat, but tells him he had done deeds that ought not to be done. Note, Equivocation and dissimulation, however they may be palliated, are very bad things, and by no means to be admitted in any case. (4.) He takes it as a very great injury to himself and his family that Abraham had thus exposed them to sin: "What have I offended thee? If I had been thy worst enemy, thou couldst not have done me a worse turn, nor taken a more effectual course to be revenged on me." Note, We ought to reckon that those do us the greatest unkindness in the world that any way tempt us or expose us to sin, though they may pretend friendship, and offer that which is grateful enough to corrupt nature. (5.) He challenges him to assign a cause for his suspecting them as a dangerous people for an honest man to live among: "What sawest thou, that thou hast done this thing? Gen 20:10. What reason hadst thou to think that if we had known her to be thy wife thou wouldst have been exposed to any danger by it?" Note, A suspicion of our goodness is justly reckoned a greater affront than a slight upon our greatness.
2. The poor excuse that Abraham made for himself.
(1.) He pleaded the bad opinion he had of the place, Gen 20:11. He thought within himself (though he could not give any good reason for his thinking so), "Surely the fear of God is not in this place, and then they will slay me." [1.] Little good is to be expected where no fear of God is. See Psa 36:1. [2.] There are many places and persons that have more of the fear of God in them than we think they have: perhaps they are not called by our dividing name, they do not wear our badges, they do not tie themselves to that which we have an opinion of; and therefore we conclude they have not the fear of God in their hearts, which is very injurious both of Christ and Christians, and makes us obnoxious to God's judgment, Mat 7:1. [3.] Uncharitableness and censoriousness are sins that are the cause of many other sins. When men have once persuaded themselves concerning such and such that they have not the fear of God, they think this will justify them in the most unjust and unchristian practices towards them. Men would not do ill if they did not first think ill.
(2.) He excused it from the guilt of a downright lie by making it out that, in a sense, she was his sister, Gen 20:12. Some think she was own sister to Lot, who is called his brother Lot (Gen 14:16), though he was his nephew; so Sarah is called his sister. But those to whom he said, She is my sister, understood that she was so his sister as not to be capable of being his wife; so that it was an equivocation, with an intent to deceive.
(3.) He clears himself from the imputation of an affront designed to Abimelech in it by alleging that it had been his practice before, according to an agreement between him and his wife, when they first became sojourners (Gen 20:13): "When God caused me to wander from my father's house, then we settled this matter." Note, [1.] God is to be acknowledged in all our wanderings. [2.] Those that travel abroad, and converse much with strangers, as they have need of the wisdom of the serpent, so it is requisite that that wisdom be ever tempered with the innocence of the dove. It may, for aught I know, be suggested that God denied to Abraham to punish them for this sinful compact if they will not own their marriage, why should God own it? But we may suppose that, after this reproof which Abimelech gave them, they agreed never to do so again, and then presently we read (Gen 21:1, Gen 21:2) that Sarah conceived.

What sawest thou that thou hast done this thing ? By this question the king provides against the future. He thinks that Abraham had not practiced this dissimulation inconsiderately; and, since God was grievously offended, he fears to fall again into the same danger. He therefore testifies, by an inquiry so earnest, that he wishes to remedy the evil. Now, it is no common sign of a just and meek disposition in Abimelech, that he allows Abraham a free defense. We know how sharply, and fiercely, they expostulate, who think themselves aggrieved: so much the greater praise, then, was due to the moderation of this king, towards an unknown foreigner. Meanwhile, let us learn, by his example, whenever we expostulate with our brethren, who may have done us any wrong, to permit them freely to answer us.

Abimelech rose early, etc. - God came to Abimelech in a dream by night, and we find as the day broke he arose, assembled his servants, (what we would call his courtiers), and communicated to them what he had received from God. They were all struck with astonishment, and discerned the hand of God in this business. Abraham is then called, and in a most respectful and pious manner the king expostulates with him for bringing him and his people under the Divine displeasure, by withholding from him the information that Sarah was his wife; when, by taking her, he sought only an honorable alliance with his family.

And Abimelech said unto Abraham,.... Continuing his discourse with him:

what sawest thou, that thou hast done this thing? he desires to know what he had observed, either in him or his people, that gave him any reason to conclude that they were a lustful people, and would stick at nothing to gratify their lusts, which put him upon taking such a method to secure his life, lest they should kill him for his wife's sake.

What levity or miscarriage didst thou discern in us which moved thee to deal thus with us?

"What sawest thou," i.e., what hadst thou in thine eye, with thine act (thy false statement)? Abimelech did this publicly in the presence of his servants, partly for his own justification in the sight of his dependents, and partly to put Abraham to shame. The latter had but two weak excuses: (1) that he supposed there was no fear of God at all in the land, and trembled for his life because of his wife; and (2) that when he left his father's house, he had arranged with his wife that in every foreign place she was to call herself his sister, as she really was his half-sister. On the subject of his emigration, he expressed himself indefinitely and with reserve, accommodating himself to the polytheistic standpoint of the Philistine king: "when God (or the gods, Elohim) caused me to wander," i.e., led me to commence an unsettled life in a foreign land; and saying nothing about Jehovah, and the object of his wandering as revealed by Him.