14 And Abimelech took sheep, and oxen, and menservants, and womenservants, and gave them unto Abraham, and restored him Sarah his wife. 15 And Abimelech said, Behold, my land is before thee: dwell where it pleaseth thee. 16 And unto Sarah he said, Behold, I have given thy brother a thousand pieces of silver: behold, he is to thee a covering of the eyes, unto all that are with thee, and with all other: thus she was reproved. 17 So Abraham prayed unto God: and God healed Abimelech, and his wife, and his maidservants; and they bare children. 18 For the Lord had fast closed up all the wombs of the house of Abimelech, because of Sarah Abraham’s wife.
When Pharaoh discovered that Abraham was Sarah’s husband he sent them on their way. Abimelech, on the other hand, shows much more graciousness in his response. He expresses his frustration to Abraham and Sarah, reproves them for their deceit, but then offers them a gift and invites them to dwell in his land wherever they prefer.
One might say that this was just Abimelech trying to enter Abraham’s good graces so that the prophet would intervene for his sake, but the record shows that even after Abraham prayed for Abimelech’s household and everything was returned to normal that the two of them remained honorable towards one another.
We don’t learn too much about this king in the biblical record, but he seems to be a man of great maturity and integrity. When he was offended, he expressed it plainly, but immediately afterwards did his part to repair relationships and establish goodwill.