David

David, Iron Age and Mail armour

(34:10-11) We granted David blessings from Us: "O mountains, glorify with him, as well as the birds." We softened the iron for him. That you may make mail armour that fit perfectly, and work righteousness. For I am Seer of what you do.

"As its name suggests, Iron Age technology is characterized by the production of tools and weaponry by ferrous metallurgy (ironworking), more specifically from carbon steel." - citation from the Wikipedia article Iron Age