1Sam 17:46-47

46This very day the Lord will deliver you into my hand, and I will strike you down and cut off your head; and I will give the dead bodies of the Philistine army this very day to the birds of the air and to the wild animals of the earth, so that all the earth may know that there is a God in Israel,47and that all this assembly may know that the Lord does not save by sword and spear; for the battle is the Lord's and he will give you into our hand.”