Genesis 21:30-32 New English Translation (NET Bible)
30 He replied, “You must take these seven ewe lambs from my hand as legal proof that I dug this well.” 31 That is why he named that place Beer Sheba, because the two of them swore an oath there.
32 So they made a treaty at Beer Sheba. Then Abimelech and Phicol, the commander of his army, returned to the land of the Philistines.
Genesis 21:30-32 New International Version (NIV)
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.
32 After the treaty had been made at Beersheba, Abimelek and Phicol the commander of his forces returned to the land of the Philistines.