Cross reference
Genesis 26:33
33 And he called it Shebah: therefore the name of the city is Beersheba unto this day.
Genesis 21:31
31 Wherefore he called that place Beersheba; because there they sware both of them.
Genesis 26:28
28 And they said, We saw certainly that the LORD was with thee: and we said, Let there be now an oath betwixt us, even betwixt us and thee, and let us make a covenant with thee;