Genesis 21:31-33 New Revised Standard Version Catholic Edition (NRSVCE)
31 Therefore that place was called Beer-sheba;[a] because there both of them swore an oath. 32 When they had made a covenant at Beer-sheba, Abimelech, with Phicol the commander of his army, left and returned to the land of the Philistines. 33 Abraham[b] planted a tamarisk tree in Beer-sheba, and called there on the name of the Lord, the Everlasting God.[c]
Genesis 21:31-33 New International Version (NIV)
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. 33 Abraham planted a tamarisk tree in Beersheba, and there he called on the name of the Lord, the Eternal God.