Genesis 26:12-15

When Isaac planted his crops that year, he harvested a hundred times more grain than he planted, for the LORD blessed him. He became a very rich man, and his wealth continued to grow. 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.