The bellows blow fiercely, The lead is consumed by the fire; The smelter refines in vain, For the wicked are not drawn off.
Jeremiah 6:29
Surrounding context
6:28 They are all stubborn rebels, walking as slanderers. They are bronze and iron, They are all corrupters;
6:29 The bellows blow fiercely, The lead is consumed by the fire; The smelter refines in vain, For the wicked are not drawn off.
6:30 People will call them rejected silver, Because the LORD has rejected them."