Judges 15:11-15

11Then three thousand men from Judah went down to the cave in the rock of Etam and said to Samson, “Don’t you realize that the Philistines are rulers over us? What have you done to us?” He answered, “I merely did to them what they did to me.”

12They said to him, “We’ve come to tie you up and hand you over to the Philistines.” Samson said, “Swear to me that you won’t kill me yourselves.” 13“Agreed,” they answered. “We will only tie you up and hand you over to them. We will not kill you.” So they bound him with two new ropes and led him up from the rock. 14As he approached Lehi, the Philistines came toward him shouting. The Spirit of the LORD came powerfully upon him. The ropes on his arms became like charred flax, and the bindings dropped from his hands.

15Finding a fresh jawbone of a donkey, he grabbed it and struck down a thousand men.