John Gills Exposition of the Bible Commentary - Genesis 20:17
So Abraham prayed unto God ,.... As the Lord had told Abimelech be would, Genesis 20:7 ; he might pray for the forgiveness of him and his wife, and might give thanks that Sarah had been restored to him; but chiefly it was on account of Abimelech and his family: and God healed Abimelech, and his wife, and his maidservants : who by reason of some disease were rendered unfit for and incapable of cohabitation with their husbands, and they with them; but upon Abraham's prayer for them, who... read more
Matthew Henry's Complete Commentary - Genesis 20:14-18
Here is, I. The kindness of a prince which Abimelech showed to Abraham. See how unjust Abraham's jealousies were. He fancied that if they knew that Sarah was his wife they would kill him; but, when they did know it, instead of killing him they were kind to him, frightened at least to be so by the divine rebukes they were under. 1. He gives him his royal licence to dwell where he pleased in his country, courting his stay because he gives him his royal gifts (Gen. 20:14), sheep and oxen, and... read more