Genesis 26:16-21

Eventually Abimelech’s jealousy got the better of him, and he said to Isaac, “You must leave us! You have become too rich and powerful for us!” So Isaac departed from Abimelech’s domain and camped near the Wadi of Gerar, where he settled. Isaac reopened and restored the wells his father Abraham had originally dug—the wells the Philistines had stopped up after Abraham’s death. And Isaac gave these wells the same names that his father had given them. One day, when Isaac’s servants dug in the valley, they uncovered a spring-fed well. But the herdsmen of Gerar picked a fight with Isaac’s herdsmen, saying, “That’s our well!” So Isaac named the well Argument because of the sharp contention. They dug a second well, and it also caused a quarrel, so Isaac named that well Hostility.