Where it appears

• Deut 4:20But Yahweh has taken you, and brought you out of the iron furnace, out of Egypt, to be to him a people of inheritance, as it is today.
• 1 Kgs 8:51(for they are your people, and your inheritance, which you brought out of Egypt, from the middle of the iron furnace);
• Prov 17:3The refining pot is for silver, and the furnace for gold, but Yahweh tests the hearts.
• Prov 27:21The crucible is for silver, and the furnace for gold; but man is refined by his praise.
• Isa 48:10Behold, I have refined you, but not as silver. I have chosen you in the furnace of affliction.
• Jer 11:4which I commanded your fathers in the day that I brought them out of the land of Egypt, out of the iron furnace,’ saying, ‘Obey my voice, and do them, according to all which I command you: so you shall be my people, and I will be your God;
• Ezek 22:18“Son of man, the house of Israel has become dross to me. All of them are brass, tin, iron, and lead in the middle of the furnace. They are the dross of silver.
• Ezek 22:20As they gather silver, brass, iron, lead, and tin into the middle of the furnace, to blow the fire on it, to melt it; so will I gather you in my anger and in my wrath, and I will lay you there, and melt you.
• Ezek 22:22As silver is melted in the middle of the furnace, so you will be melted in the middle of it; and you will know that I, Yahweh, have poured out my wrath on you.’”