Genesis 26:26-33

26Now Abimelech went to him from Gerar along with Achuzzat his friend and Phicol the commander of his army.

27Isaac said to them, “Why have you come to me, since you hate me and sent me away from you?”

28They said, “We’ve clearly seen that Adonai has been with you. So we said, ‘Let there now be an agreement between us—between us and you—and let us make a covenant with you:

29that you will do us no harm, just as we haven’t touched you and just as we did nothing to you but good, and sent you away in shalom. You are now blessed by Adonai.”

30Then he made a feast for them and they ate and drank.

31Then they got up early in the morning and made a pledge, each to his brother. Then Isaac sent them away and they departed from him in shalom.

32Now it happened that on that day Isaac’s servants came and told him about the well that they dug, and said to him, “We’ve found water.”

33So he called it Pledge. That is why the city’s name is Beer-sheba to this day.