Genesis 21:30-34

And he said, For these seven ewe lambs shalt thou take of my hand, that they may be a witness unto me, that I have digged this well.

Wherefore he called that place Beer-sheba; because there they sware both of them.

Thus they made a covenant at Beer-sheba: then Abimelech rose up, and Phichol the chief captain of his host, and they returned into the land of the Philistines.

And Abraham planted a grove in Beer-sheba, and called there on the name of the LORD, the everlasting God.

And Abraham sojourned in the Philistines’ land many days.