John Calvin's Bible Commentary
Jeremiah 4:26
What he saw the fourth time was this — that the fertile land was turned into a desert. I indeed think that Carmel is to be taken here as meaning the place. That part of the holy land, we know, received its name from its fertility: Carmel means any rich and fruitful spot of ground. But, as I have just said, the mount was so called because it abounded in all kinds of produce; for there were on it fruitful pastures and fertile fields, and every part of it was remarkably pleasant and delightful. I am therefore inclined to consider Carmel itself to be meant here; and my reason is, because he immediately adds, that its cities were destroyed; and this can be more fitly applied to Carmel than generally to all fruitful regions. As to myself, I think that the Prophet speaks of Carmel; and yet he alludes to what the word means. (120) Even in this verse he mentions a part for the whole, as though he had said, that Carmel, which excelled in fertility, had become like a desert. When Isaiah speaks of the renovation of the Church, he says,
“The desert shall be as Carmel,“ (Isaiah 32:15)
as though he had said, that the blessing of God would be so abundant through the whole world, that deserts would bear fruit like Carmel, or those regions which are remarkable for their fertility. But Jeremiah, speaking here of a curse, says, that Carmel would be like the desert; and that all its cities would be demolished, even at the presence of Jehovah, and by the great heat of his wrath
Some render חרון, charun, fury: and this kind of language is not without its use; for men, as we have said, except God terrifies them as it were by thunders, will sleep and will not perceive his judgment, so that all threatenings become useless to them. This is the reason why Scripture speaks so often of the fury or of the great heat of God’s wrath. Either of the two words might indeed be sufficient; either חרון, charun, which means fury or great heat; or אף aph, which signifies anger or wrath. Why then are both mentioned? because it is necessary, as I have said, to tear in pieces our hardness as with hammers; for otherwise God could never turn us to fear him. This repetition then ought to avail for the purpose of subduing the perverseness of our nature; not that these turbulent feelings belong to God, as it is well known; but as we cannot otherwise conceive how dreadful his vengeance is, it is necessary that he should be set before us as one who is angry and burning with wrath: in a like manner, eternal death is described to us under the metaphor of fire.
Now, as to the sum of what is here said, the Jews at that time no doubt enjoyed great abundance and indulged their pleasures; in short, they were fully pleased with their condition. But the Prophet here declares that he saw at a distance what these blind Jews did not see, even God’s vengeance approaching, which would deprive them of that abundance, on account of which they were so swollen with pride, and which would reduce them all into such a state of desolation that nothing would remain above or below, but a disordered confusion, such as existed before nature was brought to order, when the earth was not separated from the heavens, and there was only a confused mass, including all the elements, and without any light. He afterwards adds —