Judges 15:5-9

Then he lit the torches and let the foxes run through the grain fields of the Philistines. He burned all their grain to the ground, including the sheaves and the uncut grain. He also destroyed their vineyards and olive groves. “Who did this?” the Philistines demanded. “Samson,” was the reply, “because his father-in-law from Timnah gave Samson’s wife to be married to his best man.” So the Philistines went and got the woman and her father and burned them to death. “Because you did this,” Samson vowed, “I won’t rest until I take my revenge on you!” So he attacked the Philistines with great fury and killed many of them. Then he went to live in a cave in the rock of Etam. The Philistines retaliated by setting up camp in Judah and spreading out near the town of Lehi.