1 Samuel 17:9-10

17:9 If he is able to fight with me and strike me down, we will become your servants. But if I prevail against him and strike him down, you will become our servants and will serve us.” 17:10 Then the Philistine said, “I defy Israel’s troops this day! Give me a man so we can fight each other!”

1 Samuel 17:26

17:26 David asked the men who were standing near him, “What will be done for the man who strikes down this Philistine and frees Israel from this humiliation? For who is this uncircumcised Philistine, that he defies the armies of the living God?”

1 Samuel 17:36

17:36 Your servant has struck down both the lion and the bear. This uncircumcised Philistine will be just like one of them. For he has defied the armies of the living God!”