1 Samuel 17:47-49

Darby Translation

⁴⁷ and all this congregation shall know that Jehovah saves not with sword and spear; for the battle is Jehovah's, and he will give you into our hands.

⁴⁸ And it came to pass, when the Philistine arose, and came and advanced to meet David, that David hasted, and ran towards the ranks to meet the Philistine.

⁴⁹ And David put his hand into the bag, and took thence a stone, and slang it, and smote the Philistine in his forehead, and the stone sank into his forehead; and he fell on his face to the earth.