And Abraham said of Sarah his wife, {b} She is my sister: and Abimelech king of Gerar sent, and took Sarah.

(b) Abraham had now twice fallen into this sin: such is man's frailty.

Jamieson-Fausset-Brown Bible Commentary

2. 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 [6]Ge 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 [7]Ge 12:15).

Matthew Henry's Concise Commentary

20:1-8 Crooked policy will not prosper: it brings ourselves and others into danger. God gives Abimelech notice of his danger of sin, and his danger of death for his sin. Every wilful sinner is a dead man, but Abimelech pleads ignorance. If our consciences witness, that, however we may have been cheated into a snare, we have not knowingly sinned against God, it will be our rejoicing in the day of evil. It is matter of comfort to those who are honest, that God knows their honesty, and will acknowledge it. It is a great mercy to be hindered from committing sin; of this God must have the glory. But if we have ignorantly done wrong, that will not excuse us, if we knowingly persist in it. He that does wrong, whoever he is, prince or peasant, shall certainly receive for the wrong which he has done, unless he repent, and, if possible, make restitution.