Genesis 21:29

Then Abimelech asked Abraham, "What is the meaning of these seven ewe lambs which you have set by themselves?"

Surrounding context

21:28 And Abraham set seven ewe lambs of the flock by themselves.

21:29 Then Abimelech asked Abraham, "What is the meaning of these seven ewe lambs which you have set by themselves?"

21:30 And he said, "You will take these seven ewe lambs from my hand, that they may be my witness that I have dug this well."

Translation and sources