Your ways and your deeds have brought this upon you. This is your doom, and it is bitter; it has reached your very heart.”
As I have just said, the Prophet confirms what he had declared, — that the Jews would not have to suffer, according to what is commonly said, an adverse fortune, but would be summoned by God to judgment, in order that being touched with the fear of God, they might repent, or at least, though destroyed as to the flesh, they might yet, being humbled...
God's usual method is to warn before he wounds. In these verses, accordingly, God gives notice to the Jews of the general desolation that would shortly be brought upon them by a foreign invasion. This must be declared and published in all the cities of Judah and streets of Jerusalem, that all might hear and fear, and by this loud alarm be either brought to repentance or left inexcusable.
Commenting on Jeremiah 4:5-18
Thy way and thy doings have procured these things unto thee,.... The way in which they walked, which was an evil one; and the actions which they committed; their idolatries, backslidings, and rebellions, before spoken of in this and the preceding chapter, were the cause of this siege, and those calamities coming upon them; they had none to blame but themselves; it was their own...