Jeremiah 6:28
They are all grievous rebels, walking with slanders: they are brass and iron; they are all corrupters.
Torrey's Topical Textbook—AKJV

Ezekiel 22:18
Son of man, the house of Israel is to me become dross: all they are brass, and tin, and iron, and lead, in the middle of the furnace; they are even the dross of silver.
Torrey's Topical Textbook—AKJV