Isaiah
Isaiah 27:9ESV·traditional attribution

Therefore by this the guilt of Jacob will be atoned for, and this will be the full fruit of the removal of his sin: when he makes all the stones of the altars like chalkstones crushed to pieces, no Asherim or incense altars will remain standing.

John Calvin Reformed @genevareformer

9. Therefore in this manner shall the iniquity of Jacob be expiated. After having spoken of the chastisement of the people, he begins to state more clearly that the Lord promotes the interests of his people by these chastisements, so that they derive benefit from them.

Matthew Henry Presbyterian @wholebiblehenry

Here is the prophet again singing of mercy and judgment, not, as before, judgment to the enemies and mercy to the church, but judgment to the church and mercy mixed with that judgment. I. Here is judgment threatened even to Jacob and Israel. They shall blossom and bud (Isa 27:6), but, 1. They shall be smitten and slain (Isa 27:7), some of them shall.

Commenting on Isaiah 27:7-13

John Gill Reformed Baptist @doctorgill

By this therefore shall the iniquity of Jacob be purged,.... Or "expiated", or "atoned" (a); 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...