1 Samuel 17:47

That the Lord saveth not with sword and spear, i.e. that he can save without these arms, and with the most contemptible weapons, such as mine seem to thee. The battle is the Lord s, i.e. the events of war are wholly in his power, to give success to whom and by what means he pleaseth. He will give you into our hands: David speaks thus confidently, because he was assured of it by a particular inspiration from God.