Genesis 26:33

and he calleth it Shebah, oath, therefore the name of the city is Beer-Sheba, well of the oath, unto this day.

Genesis 21:31

therefore hath he called that place 'Beer-Sheba,' for there have both of them sworn.

Genesis 26:28

And they say, 'We have certainly seen that Jehovah hath been with thee, and we say, 'Let there be, we pray thee, an oath between us, between us and thee, and let us make a covenant with thee;

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
therefore hath he called that place 'Beer-Sheba,' for there have both of them sworn.