Matthew Poole and continuators on Micah 7:19

19 He will turn again , he will have compassion upon us : he will subdue our iniquities, and thou wilt cast all their sins into the depths of the sea .

Spoken after the manner of man who in his anger went away resolved to right himself, but on second thoughts laying aside his Anger turns again to be reconciled and forgive. So the next words explain these.

With tender bowels he will shew himself gracious to us, Ionah 3.9.

As our Enemies and his, God will break the power, abolish the dominion of sin which whilst it reigned provoked God and undid us, it polluted and ruined us, but God will pardon the guilt and abrogate the Law of sin and so restore his people suitable to that Ezek. 36.29. to 34.

Here is an Hypallage of the person from the third to the second person, yet without any lessening the sense in strength or clearness.

A usual expression in Scripture to set forth the full and eternal pardon of sin, here 'tis emphatical All their sins,

Whence ordinarily we account things, can never rise or be found more.