Genesis 21:31-33

VIN(i) 31 Wherefore that place was called Beer-sheba; because there they swore both of them. 32 They made a covenant at Beer-sheba. Abimelech and Phicol, the commander of his army, arose and returned to the land of the Philistines. 33 And he planted a tamarisk tree in Beersheba, and there he called on the name of the LORD the everlasting God.