Genesis 21:25-32

25And Abraham reproved Abimelech because of a well of water, which Abimelech’s servants had violently taken away.

26And Abimelech said, I wot not who hath done this thing: neither didst thou tell me, neither yet heard I of it, but to day.

27And Abraham took sheep and oxen, and gave them unto Abimelech; and both of them made a covenant.

28And Abraham set seven ewe lambs of the flock by themselves.

29And Abimelech said unto Abraham, What mean these seven ewe lambs which thou hast set by themselves?

30And he said, For these seven ewe lambs shalt thou take of my hand, that they may be a witness unto me, that I have digged this well.

31Wherefore he called that place Beer–sheba; because there they sware both of them.1

32Thus they made a covenant at Beer–sheba: then Abimelech rose up, and Phichol the chief captain of his army, and they returned into the land of the Philistines.