Goliath
Goliath is described in the biblical Book of Samuel as a Philistine giant defeated by the young David in single combat. The story signified Saul's unfitness to rule, as Saul himself should have fought for the Kingdom of Israel.
David (Bernini)
The sculpture shows a scene from the Old Testament First Book of Samuel. The Israelites are at war with the Philistines whose champion, Goliath, has challenged the Israelite army to settle the conflict by single combat. The young shepherd David has just taken up the challenge, and is about to slay Goliath with a stone from his sling: