1 Samuel 17:1-4

The Philistines now mustered their army for battle and camped between Socoh in Judah and Azekah at Ephes-dammim. Saul countered by gathering his Israelite troops near the valley of Elah. So the Philistines and Israelites faced each other on opposite hills, with the valley between them. Then Goliath, a Philistine champion from Gath, came out of the Philistine ranks to face the forces of Israel. He was over nine feet tall!