Genesis 21:29-31 Amplified Bible, Classic Edition (AMPC)
29 And Abimelech said to Abraham, What do these seven ewe lambs which you have set apart mean?
30 He said, You are to accept these seven ewe lambs from me as a witness for me that I dug this well.
31 Therefore that place was called Beersheba [well of the oath], because there both parties swore an oath.
Genesis 21:29-31 New International Version (NIV)
29 and Abimelek asked Abraham, “What is the meaning of these seven ewe lambs you have set apart by themselves?”
30 He replied, “Accept these seven lambs from my hand as a witness that I dug this well.”
31 So that place was called Beersheba,[a] because the two men swore an oath there.