Exodus 32:3,4 And all the people broke off the golden earrings which were in their ears, and brought them to Aaron. Torrey's Topical Textbook
Proverbs 17:3 The fining pot is for silver, and the furnace for gold: but the LORD tries the hearts. Torrey's Topical Textbook
Library
God's People in the Furnace ... all the dross is burned, and the tin is gone, he will say, "Bring hither that wedge of gold; I do not keep my pure gold on earth. ... The furnace makes us fusible. ... /.../spurgeon/spurgeons sermons volume 1 1855/gods people in the furnace.htm