17 And the word of the LORD came unto me, saying,   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 midst of the furnace; they are even the dross of silver.   19 Therefore thus saith the Lord GOD; Because ye are all become dross, behold, therefore I will gather you into the midst of Jerusalem.   20 As they gather silver, and brass, and iron, and lead, and tin, into the midst of the furnace, to blow the fire upon it, to melt it; so will I gather you in mine anger and in my fury, and I will leave you there, and melt you.   21 Yea, I will gather you, and blow upon you in the fire of my wrath, and ye shall be melted in the midst thereof.   22 As silver is melted in the midst of the furnace, so shall ye be melted in the midst thereof; and ye shall know that I the LORD have poured out my fury upon you.

      The same melancholy string is still harped upon, and various turns are given it, to make it affecting, that it may be influencing. The prophet must here show, or at least it is here shown him, that the whole house of Israel has become as dross and that as dross they shall be consumed. What David has said concerning the wicked ones of the world is here said concerning the wicked ones of the church, now that it is corrupt and degenerate (Ps. cxix. 119): Thou puttest away all the wicked of the earth like dross.

      I. See here how the wretched degeneracy of the house of Israel is described. That state, in David's and Solomon's time, had been a head of gold; when the kingdoms were divided it was as the arms of silver. But now, 1. It has degenerated into baser metal, of no value in comparison with what it formerly was: They are all brass, and tin, and iron, and lead, which some make to signify divers sorts of sinners among them. Their being brass denotes the impudence of some in their wickedness; they are brazen-faced, and cannot blush; their shoes had been iron and brass (Deut. xxxiii. 25), but now their brow is so, Isa. xlviii. 4. Their being tin denotes the hypocritical profession of piety with which many of them cover their iniquity; they have a specious show, but no intrinsic worth. Their being iron denotes the cruel disposition of some, and their delight in war, according to the character of the iron age. Their being lead denotes their dulness, sottishness, and stupidity: though soft and pliable to evil, yet heavy and not movable to good. How has the gold become dross! How has the most fine gold changed! So is Jerusalem's degeneracy bewailed, Lam. iv. 1. Yet this is not the worst; these metals, though of less value, are yet of good use. But, 2. The house of Israel has become dross to me. So she is in God's account, whatever she is in her own and her neighbours' account. They were silver, but now they are even the dross of silver; the word signifies all the dirt, and rubbish, and worthless stuff, that are separated from the silver in the washing, melting, and refining of it. Note, Sinners, and especially degenerate professors, are in God's account as dross, vile, and contemptible, and of no account, as the evil figs which could not be eaten, they were so evil. They are useless and fit for nothing; of no consistency with themselves and no service to man.

      II. How the woeful destruction of this degenerate house of Israel is foretold. They are all gathered together in Jerusalem; thither people fled from all parts of the country as to a city of refuge, not only because it was a strong city, but because it was the holy city. Now God tells them that their flocking into Jerusalem, which they intended for their security, should be as the gathering of various sorts of metal into the furnace or crucible, to be melted down, and to have the dross separated from them. They are in the midst of Jerusalem, surrounded by the forces of the enemy; and, being thus enclosed, 1. The fire of God's wrath shall be kindled upon this furnace, and it shall be blown, to make it burn fiercely and strongly, v. 20, 21. God will gather them in his anger and fury. The blowing of the fire makes a great noise, so will the judgments of God upon Jerusalem. When God stirs up himself to execute judgments upon a provoking people, from the consideration of his own glory and the necessity of making some examples, then he may be said to blow the fire of his wrath against sin and sinners, to heat the furnace seven times hotter. 2. The several sorts of metal gathered in it shall be melted; by a complication of judgments, as by a raging fire, their constitution shall be dissolved, they shall lose all their former shape and strength, and shall be utterly unable to stand before the wrath of God. The various sorts of sinners shall be melted down together, and united in a common overthrow, as brass and lead in the same furnace, as trees are bound in bundles for the fire. They came together into Jerusalem as a place of defence, but God brought them together there as unto a place of execution. 3. God will leave them in the furnace (v. 20): I will gather you into the furnace and will leave you there. When God brings his own people into the furnace he sits by them, as the refiner by his gold, to see that they be not continued there any longer than is fitting and needful; but he will bring these people into the furnace, as men throw dross into it, which they design shall be consumed, and therefore are in no care about it, but leave it there. Compare with this Hos. v. 14, I will tear and go away. 4. Hereby the dross shall be wholly separated and the good metal purified, the impenitent shall be destroyed and the penitent reformed and fitted for deliverance. Take away the dross from the silver, and there shall come forth a vessel for the finer, Prov. xxv. 4. This judgment shall do that in the house of Israel for the doing of which other methods had been tried in vain, and reprobate silver shall they no more be called, Jer. vi. 30.