Genesis 21:32-34 Revised Standard Version (RSV)
32 So they made a covenant at Beer-sheba. Then Abim′elech and Phicol the commander of his army rose up and returned to the land of the Philistines. 33 Abraham planted a tamarisk tree in Beer-sheba, and called there on the name of the Lord, the Everlasting God. 34 And Abraham sojourned many days in the land of the Philistines.