Philistine champion from Gath, over nine feet tall, who defied the armies of Israel for forty days. The shepherd boy David answered his challenge and felled him with a single stone from his sling, then beheaded him with his own sword — Israel's most famous picture of faith overcoming overwhelming odds.
And there went out a champion out of the camp of the Philistines, named Goliath, of Gath, whose height was six cubits and a span.1 Samuel 17:4, KJV
1 Samuel 17:8
And he stood and cried unto the armies of Israel, and said unto them, Why are ye come out to set your battle in array? am not I a Philistine, and ye servants to Saul? choose you a man for you, and let him come down to me.1 Samuel 17:8, KJV
1 Samuel 17:48
And it came to pass, when the Philistine arose, and came and drew nigh to meet David, that David hasted, and ran toward the army to meet the Philistine.1 Samuel 17:48, KJV
1 Samuel 17:50
So David prevailed over the Philistine with a sling and with a stone, and smote the Philistine, and slew him; but there was no sword in the hand of David.1 Samuel 17:50, KJV
See how Goliath connects to every other figure in Scripture.