Isaiah 27:9

“By this therefore shall the iniquity of Jacob be purged, &c.] Or “expiated”, or “atoned”f536; not that afflictions are atonements for sin, or give satisfaction to divine justice for it; but they are the means of bringing the Lord’s people to a sense of their sins, and to repentance and humiliation for them, and confession of them, and of leading them to the blood and sacrifice of Christ, by which they are expiated and atoned, and which the Spirit of God brings near, and applies unto them; whereby their sins, they are convicted of by means of afflictions, and which lay heavy upon their consciences, are purged away, and removed from them: and this [is] all the fruit, to take away sin; this is…”

“By this--exile of Israel (the "sending away," Isa 27:8). purged--expiated [HORSLEY]. all the fruit--This is the whole benefit designed to be brought about by the chastisement; namely, the removal of his (Israel's) sin (namely, object of idolatry; Deu 9:21; Hos 10:8). when he--Jehovah; at the destruction of Jerusalem by Nebuchadnezzar, His instrument. The Jews ever since have abhorred idolatry (compare Isa 17:8). not stand up--shall rise no more [HORSLEY].”

“By this - By this manner of God's dealing with them. When - Which sin of Jacob's shall be purged, when he shall truly repent of all his sins, and especially of his idolatry. Altar - Their idolatrous altars. Possibly he may say the altar, with respect to that particular altar, which Ahaz had set upon the place of God's own altar; and this prophecy might be delivered in Ahaz's time, while that altar stood. Chalk - stones - When he shall break all those goodly altars in pieces. Not stand - Shall be thrown down with contempt. Isaiah 27:10”

“27:9 God’s justice requires him to punish sin. That punishment is designed to correct behavior and to purify. Being conquered and exiled wasThe Exile occurred so that to purge Israel’s wickedness and to take away all her sin (see Rom 11:27). • This was to be the end of all the pagan worship in Israel, including the incense altars and the poles that were used in worshiping the goddess Asherah.”

“this therefore: Isa 1:24, Isa 1:25, Isa 4:4, Isa 48:10; Psa 119:67, Psa 119:71; Pro 20:30 \*marg. Eze 20:38, Eze 24:13; Dan 11:35; Mal 3:2, Mal 3:3; Co1 11:32; Heb 12:6, Heb 12:9-11 when: Kg2 25:9, Kg2 25:13-17; Ch2 36:19; Ezr 3:2, Ezr 3:3; Eze 11:18, Eze 24:11-14 the groves: Isa 1:29, Isa 2:12-21, Isa 17:8; Hos 14:8; Mic 5:13, Mic 5:14; Zac 13:2 images: or, sun images, Ch2 14:5, Ch2 34:4 Isaiah 27:10”

“He was angry, but not without love; He punished, but only to be able to pardon again. "Therefore will the guilt of Jacob be purged thus: and this is all the fruit of the removal of his son: when He maketh all altar-stones like chalk-stones that are broken in pieces, Astarte images and sun-pillars do not rise up again." With the word "therefore" (lâcēn) a conclusion is drawn from the expression "by measure." God punished Israel "by measure;" His punishment is a way to salvation: therefore it ceases as soon as its purpose is secured; and so would it cease now, if Israel would thoroughly renounce its sin, and, above all, the sin of all sins, namely idolatry. "Thus" (by this) refers to the…”