Genesis 26:20-22

20But the shepherds of Gerar strove with Isaac's shepherds, saying, The water is ours. And he called the name of the well Esek, because they had quarrelled with him.

21And they dug another well, and they strove for that also; and he called the name of it Sitnah.

22And he removed thence and dug another well; and they did not strive for that. And he called the name of it Rehoboth, and said, For now Jehovah has made room for us, and we shall be fruitful in the land.