our size doesn't determine your strength—your faith does. David was a young shepherd, untrained in battle, while Goliath was a giant warrior. But David's faith in God was his true weapon. God uses ordinary people for extraordinary victories. David wasn’t a soldier—he was just delivering food to his brothers. But when he saw Goliath defying God, he stepped up. The battle is the Lord’s. David didn’t rely on his strength. He declared that God would give him victory.