Genesis 21:25-32

25Then Abraham complained to Abimelech about a well of water which the servants of Abimelech had [violently] seized [from him],

26Abimelech said, “I do not know who did this thing. Indeed, you did not tell me, and I did not hear of it until today.”

27So Abraham took sheep and oxen and gave them to Abimelech, and the two men made a covenant (binding agreement).

28Then Abraham set apart seven ewe lambs of the flock,

29and Abimelech said to Abraham, “What is the meaning of these seven ewe lambs which you have set apart?”

30Abraham said, “You are to accept these seven ewe lambs from me as a witness for me, that I dug this well.”

31Therefore that place was called Beersheba (Well of the Oath or Well of the Seven), because there the two of them swore an oath.

32So they made a covenant at Beersheba; then Abimelech and Phicol, the commander of his army, got up and returned to the land of the Philistines.