1 Samuel 17

45 And David said to Goliath, Thou comest to me with a sword, and spear, and shield; but I come to thee in name of the Lord of hosts, God of the companies of Israel, to whom thou hast said reproof today.

46 And the Lord shall give thee into mine hand, and I shall slay thee, and I shall take thine head from thee; and today I shall give the dead bodies of the tents of Philistines to the fowls of heavens, and to the beasts of the earth; that all the earth know, that the Lord God is in Israel,

47 and that all this church know, that the Lord saveth not in sword neither in spear; for the battle is his, and he shall betake you into our hands.