Genesis 26:13-17

13And the man [Isaac] became great and gained more and more until he became very wealthy and extremely distinguished;

14he owned flocks and herds and a great household [with a number of servants], and the Philistines envied him.

15Now 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.

16Then Abimelech said to Isaac, “Go away from here, because you are far too powerful for us.”

17So Isaac left that region and camped in the Valley of Gerar, and settled there.