1 Samuel 17:4 (KJV)

And Saul and the men of Israel were gathered together, and pitched by the valley of Elah, and set the battle in array against the Philistines.

And the Philistines stood on a mountain on the one side, and Israel stood on a mountain on the other side: and there was a valley between them.

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.

And he had an helmet of brass upon his head, and he was armed with a coat of mail; and the weight of the coat was five thousand shekels of brass.

And he had greaves of brass upon his legs, and a target of brass between his shoulders.