in a furnace # 19_PSA_12_06 # The words of the LORD [are] pure words: [as] silver tried in a furnace of earth, purified seven times. 
in a furnace # 66_REV_01_15  And his feet like unto fine brass, as if they burned in a furnace; and his voice as the sound of many waters. ## And his feet like unto fine brass, as if they burned in a furnace; and his voice as the sound of many waters.