1 Samuel 17:46-47

46Today the Lord will make me strong to win against you. I will knock you down and I will cut off your head. Today I will feed the birds and the wild animals with the dead bodies of the Philistine soldiers. Then everyone on the earth will know that there is a God who takes care of Israel.

47The Lord does not need swords or spears to save his people. Everyone here will soon know that! The Lord is the one who fights our battles. He will put you under our power.’