Cross reference
Genesis 26:33
33 He called it Shibah.{Shibah means "oath" or "seven."} Therefore the name of the city is Beersheba{Beersheba means "well of the oath" or "well of the seven"} to this day.
Genesis 21:31
31 Therefore he called that place Beersheba,{Beersheba can mean "well of the oath" or "well of seven."} because they both swore there.
Genesis 26:28
28 They said, "We saw plainly that Yahweh was with you. We said, 'Let there now be an oath between us, even between us and you, and let us make a covenant with you,