Judges 15 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. 14 As 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. 16 Then Samson said, “With a donkey’s jawbone I have made donkeys of them. With a donkey’s jawbone I have killed a thousand men.”
Samson killed 1000 men with a jawbone. It's such an amazing feat that I don't think I've ever heard equaled by any fighting man. It's no wonder that this place became known as Jawbone Hill. But what shouldn't be lost from this passage is this sentence "The Spirit of the Lord came powerfully upon him." Samson was able to do what he did only because he was empowered by the Lord.
Never underestimate the power of the Lord's Spirit.