David's faith was very different from that of King Saul, who, not thinking about God, immediately said, "You are not able...you are only a boy..." But David said confidently, "The Lord who delivered me from the paw of the lion and the paw of the bear will deliver (save) me from the hand of this Philistine." He had faith, not in his own fighting skills, but in the power of God, whose honor has been hurt by the Philistines and whose covenant promises had been forgotten by the Israelites.