1 Samuel 17:48-50

Amplified Bible

⁴⁸ When the Philistine rose and came forward to meet David, David ran quickly toward the battle line to meet the Philistine. ⁴⁹ David put his hand into his bag and took out a stone and slung it, and it struck the Philistine on his forehead. The stone penetrated his forehead, and he fell face down on the ground.

⁵⁰ So David triumphed over the Philistine with a sling and a stone, and he struck down the Philistine and killed him; but there was no sword in David’s hand.