'Brass' in the Bible

From Betah and from Berothai, cities of Hadadezer, king David took exceeding much brass.

then Toi sent Joram his son to king David, to Greet him, and to bless him, because he had fought against Hadadezer and struck him: for Hadadezer had wars with Toi. [Joram] brought with him vessels of silver, and vessels of gold, and vessels of brass:

and Ishbibenob, who was of the sons of the giant, the weight of whose spear was three hundred [shekels] of brass in weight, he being armed with a new [sword], thought to have slain David.

He teaches my hands to war, so that my arms bend a bow of brass.