27. I have made thee a tower and a fortress among my people; that thou mayest know and try their way.
28. They are all grievous revolters, going about with slanders; they are brass and iron: they all of them deal corruptly.
29. The bellows blow fiercely; the lead is consumed of the fire: in vain do they go on refining; for the wicked are not plucked away.
30. Refuse silver shall men call them, because the Lord hath rejected them.