Genesis 21:29-31

King James Version

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

³⁰ And 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.

³¹ Wherefore he called that place Beersheba; because there they sware both of them.