Genesis 26:33

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

Genesis 26:33 Meaning and Commentary

Genesis 26:33

And he called it Sheba
Which, according to Jerom, signifies "fulness", as if it had its name from the abundance of water in it; but rather it signifies an "oath", and was so called from the oath, which he and Abimelech had just took to one another; and these circumstances meeting together, the taking of the oath, and the account of the well, therefore the name of the city is Beersheba unto this day;
that is, the well of the oath: it had been so called by Abraham an hundred years ago or more; but now upon this occasion it was renewed and confirmed, and so continued until the times of Moses, and many ages after.

Genesis 26:33 In-Context

31 and rise early in the morning, and swear one to another, and Isaac sendeth them away, and they go from him in peace.
32 And it cometh to pass during that day that Isaac's servants come and declare to him concerning the circumstances of the well which they have digged, and say to him, `We have found water;'
33 and he calleth it Shebah, [oath,] therefore the name of the city [is] Beer-Sheba, [well of the oath,] unto this day.
34 And Esau is a son of forty years, and he taketh a wife, Judith, daughter of Beeri the Hittite, and Bashemath, daughter of Elon the Hittite,
35 and they are a bitterness of spirit to Isaac and to Rebekah.
Young's Literal Translation is in the public domain.