the iron furnace # 05_DEU_04_20 # But the LORD hath taken you, and brought you forth out of the iron furnace, [even] out of Egypt, to be unto him a people of inheritance, as [ye are] this day. 
the iron furnace # 24_JER_11_04 # Which I commanded your fathers in the day [that] I brought them forth out of the land of Egypt, from the iron furnace, saying, Obey my voice, and do them, according to all which I command you: so shall ye be my people, and I will be your God: