201 From there Abraham journeyed toward the territory of the Negeb, and dwelt between Kadesh and Shur; and he sojourned in Gerar. 2 And Abraham said of Sarah his wife, "She is my sister." And Abim'elech king of Gerar sent and took Sarah.
3 But God came to Abim'elech in a dream by night, and said to him, "Behold, you are a dead man, because of the woman whom you have taken; for she is a man's wife." 4 Now Abim'elech had not approached her; so he said, "Lord, wilt thou slay an innocent people? 5 Did he not himself say to me, 'She is my sister'? And she herself said, 'He is my brother.' In the integrity of my heart and the innocence of my hands I have done this." 6 Then God said to him in the dream, "Yes, I know that you have done this in the integrity of your heart, and it was I who kept you from sinning against me; therefore I did not let you touch her. 7 Now then restore the man's wife; for he is a prophet, and he will pray for you, and you shall live. But if you do not restore her, know that you shall surely die, you, and all that are yours."
8 So Abim'elech rose early in the morning, and called all his servants, and told them all these things; and the men were very much afraid.
Matthew Henry's Commentary on Genesis 20:1-8
Commentary on Genesis 20:1-8
(Read Genesis 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.