Bereshis 21:28-30

Orthodox Jewish Bible

²⁸ And Avraham set apart seven ewe lambs of the tzon by themselves.

²⁹ And Avimelech said unto Avraham, What mean these seven ewe lambs which thou hast set apart by themselves?

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