1 Samuel 17:8-9

8Goliath stood and shouted to the battle lines of Israel, saying to them, “Why have you come out to draw up for battle? Am I not the Philistine and are you not servants of Saul? Choose a man for yourselves and have him come down to me.

9If he is able to fight with me and kill me, then we will become your servants; but if I prevail against him and kill him, then you shall become our servants and serve us.”