Here is, 1. Abraham's removal from Mamre, where he had lived nearly twenty years, into the country of the Philistines: He sojourned in Gerar, Gen 20:1. We are not told upon what occasion he removed, whether terrified by the destruction of Sodom, or because the country round was for the present prejudiced by it, or, as some of the Jewish writers say, because he was grieved at Lot's incest with his daughters, and the reproach which the Canaanites cast upon him and his religion, for his kinsman's sake: doubtless there was some good cause for his removal. Note, In a world where we are strangers and pilgrims we cannot expect to be always in the same place. Again, Wherever we are, we must look upon ourselves but as sojourners. 2. His sin in denying his wife, as before (Gen 12:13), which was not only in itself such an equivocation as bordered upon a lie, and which, if admitted as lawful, would be the ruin of human converse and an inlet to all falsehood, but was also an exposing of the chastity and honour of his wife, of which he ought to have been the protector. But, besides this, it had here a two-fold aggravation: - (1.) He had been guilty of this same sin before, and had been reproved for it, and convinced of the folly of the suggestion which induced him to it; yet he returns to it. Note, It is possible that a good man may, not only fall into sin, but relapse into the same sin, through the surprise and strength of temptation and the infirmity of the flesh. Let backsliders repent then, but not despair, Jer 3:22. (2.) Sarah, as it should seem, was now with child of the promised seed, or, at least, in expectation of being so quickly, according to the word of God; he ought therefore to have taken particular care of her now, as Jdg 13:4. 3. The peril that Sarah was brought into by this means: The king of Gerar sent, and took her to his house, in order to the taking of her to his bed. Note, The sin of one often occasions the sin of others; he that breaks the hedge of God's commandments opens a gap to he knows not how many; the beginning of sin is as the letting forth of water.

She is my sister - See the parallel account, Genesis 12 (note), and the notes there. Sarah was now about ninety years of age, and probably pregnant with Isaac. Her beauty, therefore, must have been considerably impaired since the time she was taken in a similar manner by Pharaoh, king of Egypt; but she was probably now chosen by Abimelech more on the account of forming an alliance with Abraham, who was very rich, than on account of any personal accomplishments. A petty king, such as Abimelech, would naturally be glad to form an alliance with such a powerful chief as Abraham was: we cannot but recollect his late defeat of the four confederate Canaanitish kings. See note on Gen 14:14, etc. This circumstance was sufficient to establish his credit, and cause his friendship to be courted; and what more effectual means could Abimelech use in reference to this than the taking of Sarah, who he understood was Abraham's sister, to be his concubine or second wife, which in those times had no kind of disgrace attached to it?

And Abraham said of Sarah his wife, she is my sister,.... This he gave out in all conversation he came into, and said it to every one that asked who she was, which was little better than a lie; it at least was an equivocation and deception, and not at all justifiable, and tended to expose his wife's chastity, and discovered a distrust of divine Providence; the same infirmity be had given way to, and the same evil he had fallen into in Egypt, Gen 12:11, and therefore was the more inexcusable now; good men not only fall into sin, but have their relapses:

and Abimelech king of Gerar sent and took Sarah; having heard or seen what a beautiful woman. Sarah was, though ninety years of age, having never bore children; and understanding she was a single person, sent his servants to take her, and bring her to his house, in order to be his wife, which seems to be done with some kind of force; and it can hardly be thought that Abraham and Sarah would freely agree to it, at least it must be done with reluctance on their parts. Whether Abimelech was the first king of Palestine of this name, is not certain; if he was, which is not improbable, it became usual afterwards for the kings thereof to be so called, as Pharaoh was a common name to the kings of Egypt; it signifies "father" and "king", as kings should be the fathers of their people.

Abraham said of Sarah his wife, She is my sister--Fear of the people among whom he was, tempted him to equivocate. His conduct was highly culpable. It was deceit, deliberate and premeditated--there was no sudden pressure upon him--it was the second offense of the kind [see on Gen 12:13] --it was a distrust of God every way surprising, and it was calculated to produce injurious effects on the heathen around. Its mischievous tendency was not long in being developed.

Abimelech (father-king) . . . sent and took Sarah--to be one of his wives, in the exercise of a privilege claimed by Eastern sovereigns, already explained (see on Gen 12:15).