Genesis 26:18-22

He reopened the wells his father had dug, which the Philistines had filled in after Abraham’s death. Isaac also restored the names Abraham had given them. Isaac’s servants also dug in the Gerar Valley and discovered a well of fresh water. But then the shepherds from Gerar came and claimed the spring. “This is our water,” they said, and they argued over it with Isaac’s herdsmen. So Isaac named the well Esek (which means “argument”). Isaac’s men then dug another well, but again there was a dispute over it. So Isaac named it Sitnah (which means “hostility”). Abandoning that one, Isaac moved on and dug another well. This time there was no dispute over it, so Isaac named the place Rehoboth (which means “open space”), for he said, “At last the LORD has created enough space for us to prosper in this land.”