Genesis 26:33

And he called it Shebah. Therefore the name of the city is The Well of Sheba to this day.

Genesis 21:31

This is why he called that place Beer-sheba, because they swore, both of them, there.

Genesis 26:28

And they said, We saw certainly that Jehovah was with you. And we said, Let there be now an oath between us, between us and you, and let us make a covenant with you;

Treasury of Scripture Knowledge

Summary

And he called it Shebah: therefore the name of the city is Beersheba unto this day.

Therefore

Bible References

Therefore

Genesis 21:31
This is why he called that place Beer-sheba, because they swore, both of them, there.