Goliath is a famous figure from the Bible, known as a giant warrior from the Philistine city of Gath. He is best recognized for his battle against the young shepherd David, who defeated him with a single stone from his sling, symbolizing the triumph of the underdog over a seemingly invincible foe. The story of Goliath and David is often used as a metaphor for overcoming great challenges. Goliath's immense size and strength made him a formidable opponent, but David's faith and cleverness led to his victory, teaching lessons about courage and belief in oneself.