Genesis 21:29-31

New Catholic Bible

²⁹ Abimelech said to Abraham, “What is the meaning of the seven lambs that you have set aside?”

³⁰ He answered, “Please take these seven lambs from me, and let them be a sign to you that I dug this well.” ³¹ Because of this the place is called Beer-sheba (the well of the seven), for they both swore an oath there.