Genesis 21:31

So that place was called Beersheba, because it was there that the two of them swore an oath.

Note Beersheba means well of seven or well of the oath.

BSB · Berean Standard Bible
Wherefore he called that place Beer-sheba; because there they sware both of them.

Note Beer-sheba: that is, The well of the oath

KJV · King James Version
Therefore he called that place Beersheba, because they both swore an oath there.

Note Beersheba can mean “well of the oath” or “well of seven”.

WEB · World English Bible
Wherefore he called that place Beer-sheba; because there they sware both of them.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

called
Genesis 26:33
Genesis 21:31
Beer-sheba.i.e., The well of the oath, or the well of the seven: alluding to the seven ewe lambs. The verb rendered "to swear" is derived from the word translated seven.
Genesis 21:14; Genesis 26:23; Joshua 15:28; Judges 20:1; 2 Samuel 17:11; 1 Kings 4:25