Genesis 21:26

23 Now therefore swear unto me here by God that thou wilt not deal falsely with me, nor with my son, nor with my son's son: but according to the kindness that I have done unto thee, thou shalt do unto me, and to the land wherein thou hast sojourned.

24 And Abraham said, I will swear.

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

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

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

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

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