'Sling' in the Bible

Then he took his [shepherd’s] staff in his hand and chose for himself five smooth stones out of the stream bed, and put them in his shepherd’s bag which he had, that is, in his shepherd’s pouch. With his sling in his hand, he approached the Philistine.

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.

Should anyone rise up to pursue you and to seek your life, then the life of my lord will be bound in the [precious] bundle of the living with the Lord your God; but the lives of your enemies—those He will hurl out as from the center of a sling.