I, yes I, am He who blots out your transgressions for My own sake and remembers your sins no more.
25. I, I am he. “Ce suis-je, ce suis-je.” “It is I, it is I.” He concludes the former statement by this exclamation, as if he had said, that he may boast of his right, that he blots out the iniquities of his people, and restores them to freedom; for they have no merits by which they could obtain it, since they deserve the severest punishment, and even destruction.
This charge (and a high charge it is which is here exhibited against Jacob and Israel, God's professing people) comes in here, 1. To clear God's justice in bringing them into captivity, and to vindicate that. Were they not in covenant with him? Had they not his sanctuary among them? Why then did the Lord deal thus with his land? Deu 29:24.
Commenting on Isaiah 43:22-28
Put me in remembrance,.... Of this gracious promise of free remission of sins, and of all others of the same kind; not that God ever forgets any of his promises, but he may sometimes seem to do so; wherefore he would have his people put him in mind of them, that he may by his good Spirit make a comfortable application of them to him...