Genesis 26:19-23

But when Isaac’s servants dug in the valley and found there a well of flowing water,

the herdsmen of Gerar quarreled with the herdsmen of Isaac, saying, “The water is ours!” So he named the well Esek, because they argued with him.

Then they dug another well, and they quarreled over it too, so he named it Sitnah.

Then he moved away from there and dug another well, and they did not quarrel over it; so he named it Rehoboth, for he said, “At last the Lord has made room for us, and we will be fruitful in the land.”

And he went up from there to Beersheba.