Genesis 26:14-16

He acquired so many flocks of sheep and goats, herds of cattle, and servants that the Philistines became jealous of him. So the Philistines filled up all of Isaac’s wells with dirt. These were the wells that had been dug by the servants of his father, Abraham. Finally, Abimelech ordered Isaac to leave the country. “Go somewhere else,” he said, “for you have become too powerful for us.”