Genesis 26:12-18

Then Isaac planted [seed] in that land [as a farmer] and reaped in the same year a hundred times [as much as he had planted], and the LORD blessed and favored him. And the man [Isaac] became great and gained more and more until he became very wealthy and extremely distinguished; he owned flocks and herds and a great household [with a number of servants], and the Philistines envied him. Now all the wells which his father’s servants had dug in the days of Abraham his father, the Philistines stopped up by filling them with dirt. Then Abimelech said to Isaac, “Go away from here, because you are far too powerful for us.” So Isaac left that region and camped in the Valley of Gerar, and settled there. Now Isaac again dug [and reopened] the wells of water which had been dug in the days of Abraham his father, because the Philistines had filled them up [with dirt] after the death of Abraham; and he gave the wells the same names that his father had given them.