Genesis 26:26-29

26Now Abimelech came to him from Gerar with Ahuzzath his adviser and Phicol the commander of his army.

27Isaac said to them, “Why have you come to me? You hated me and sent me away from you.”

28They replied, “We have clearly seen how the Lord has been with you. We think there should be an oath between two parties — between us and you. Let us make a covenant with you:

29You will not harm us, just as we have not harmed you but have done only what was good to you, sending you away in peace. You are now blessed by the Lord.”