Copper. Hebrew, nechosheth, in the Authorized Version, always rendered "brass", except in Ezra 8:27 and Jeremiah 15:12. It was, almost exclusively, used by the ancients for common purposes, and for every kind of instrument, such as chains, pillars, lavers and the other Temple vessels. We read also of copper mirrors, Exodus 38:8, and even of copper arms, as helmets, spears, etc. 1 Samuel 17:5-6; 1 Samuel 17:38; 2 Samuel 21:16.