Among all these were 700 chosen left-handed men; every one could sling stones at a hair and not miss.
1 Samuel 17:50
So David prevailed over the Philistine with a sling and with a stone, and struck down the Philistine and slew him. But no sword was in David's hand.
1 Samuel 17:49
David put his hand into his bag and took out a stone and slung it, and it struck the Philistine, sinking into his forehead, and he fell on his face to the earth.
Like he who binds a stone in a sling, so is he who gives honor to a [self-confident] fool.
1 Samuel 17:40
Then he took his staff in his hand and chose five smooth stones out of the brook and put them in his shepherd's [lunch] bag [a whole kid's skin slung from his shoulder], in his pouch, and his sling was in his hand, and he drew near the Philistine.