Genesis 21:22-23

The Treaty at Beersheba 22At that time Abimelek and Phicol the commander of his forces said to Abraham, “God is with you in everything you do.

23Now swear to me here before God that you will not deal falsely with me or my children or my descendants. Show to me and the country where you now reside as a foreigner the same kindness I have shown to you.”