1 Samuel 17:10, 26, 36

Then he said, “Today I stand and dare the army of Israel! Send one of your men to fight me!”

David asked the men who stood near him, “What will be done to reward the man who kills this Philistine and takes away the shame from Israel? Who does this uncircumcised Philistine think he is? Does he think he can speak against the armies of the living God?”

I, your servant, have killed both a lion and a bear! This uncircumcised Philistine will be like them, because he has spoken against the armies of the living God.