Jeremia 50:20

The specification of "Israel," as well as Judah, shows the reference is to times yet to come. iniquity . . . none--not merely idolatry, which ceased among the Jews ever since the Babylonian captivity, but chiefly their rejection of Messiah. As in a cancelled debt, it shall be as if it had never been; God, for Christ's sake, shall treat them as innocent (Jer 31:34). Without cleansing away of sin, remission of punishment would be neither to the honor of God nor to the highest interests of the elect. whom I reserve--the elect "remnant" (Isa 1:9). The "residue" (Zac 14:2; Zac 13:8-9).

In those days, and in that time, saith the Lord,.... When mystical Babylon shall be destroyed, and the Jews will be converted and brought into their land, and be in possession of every temporal and spiritual mercy; it will then most clearly appear that they are the favourites of heaven, and all their sins are forgiven them, as follows: the iniquity of Israel shall be sought for, and there shall be none; and the sins of Judah, and they shall not be found; not that they will be wholly free from sin; or there will be none in them; or none committed by them; or that their sins are no sins; or that God has no sight or knowledge of them; but that they will not be found upon them, so as to be charged on them in a judicial way; having been removed from them to Christ, and satisfaction made for them by him; who has finished them, and made an end of them, so as that no condemnation or punishment can be inflicted on them for them; wherefore, should they be sought for by Satan, or by the law and justice of God, they will never be found, so as to be brought against them to their condemnation. The reason is, for I will pardon them whom I reserve; the remnant, according to the election of grace, whom God has chosen in Christ, preserved in him, and reserved for himself, for his own glory, and for eternal happiness; these are pardoned freely for Christ's sake; and being pardoned, no sin is imputed to them; all is removed from them, as far as the east is from the west; covered out of the sight of God; hid from the eye of avenging justice; blotted out as a debt book, which is not legible, or as a cloud which is no more; cast by the Lord behind his back, and into the depths of the sea, and entirely forgotten; never remembered or seen more, but buried in everlasting oblivion and obscurity;…

In this chapter, and that which follows, we have the judgment of Babylon, which is put last of Jeremiah's prophecies against the Gentiles because it was last accomplished; and when the cup of God's fury went round (Jer 25:17) the king of Sheshach, Babylon, drank last. Babylon was employed as the rod in God's hand for the chastising of all the other nations, and now at length that rod shall be thrown into the fire. The destruction of Babylon by Cyrus was foretold, long before it came to its height, by Isaiah, and now again, when it has come to its height, by Jeremiah; for, though at this time he saw that kingdom flourishing "like a green bay-tree," yet at the same time he foresaw it withered and cut down. And as Isaiah's prophecies of the destruction of Babylon and the deliverance of Israel out of it seem designed to typify the evangelical triumphs of all believers over the powers of darkness, and the great salvation wrought out by our Lord Jesus Christ, so Jeremiah's prophecies of the same events seem designed to point at the apocalyptic triumphs of the gospel church in the latter days over the New Testament Babylon, many passages in the Revelation being borrowed hence. The kingdom of Babylon being much larger and stronger than any of the kingdoms here prophesied against, its fall was the more considerable in itself; and, it having been more oppressive to the people of God than any of the other, the prophet is very copious upon this subject, for the comfort of the captives; and what was foretold in general often before (Jer 25:12 and Jer 27:7) is here more particularly described, and with a great deal of prophetic heat as well as light. The terrible judgments God had in store for Babylon, and the glorious blessings he had in store for his people that were captives there…

50:20 The Lord would forgive the remnant of people from Israel and Judah; they would seek the Lord as they returned to their homeland (50:4-5; see chs 31, 33).