He hath not dealt with us after our sins The Psalmist here proves from experience, or from the effect, what he has stated concerning the Divine character; for it was entirely owing to the wonderful forbearance of God that the Israelites had hitherto continued to exist. Let each of us, as if he had said, examine his own life; let us inquire in how many ways we have provoked the wrath of God? or, rather, do we not continually provoke it? and yet he not only forbears to punish us, but bountifully maintains those whom he might justly destroy.

He hath not dealt with us after our sins - All may say this, and this "is" a ground of thanksgiving and praise. It is a matter for which we should render unceasing praise that God has not done to us as our sins deserved. Who of us can fail to stand in awe and to tremble when we think what God "might" have justly done to us; what sufferings he "might" have brought upon us, which would have been no more than we have deserved; what pain of body, what distress of mind, what anguish of bereavement - what sorrow, danger, sickness, losses - we "might" have suffered before the point would be reached at which it could be said that we were suffering more than a holy and just God might properly inflict on us.
Nor rewarded us according to our iniquities - That is, he has not inflicted suffering on us that could be regarded in any proper sense as a just retribution for what we have done; or, so that it could properly be said that the one fairly "measured" the other.

He has not dealt with us after our sins - He has never apportioned our punishment to our sins, nor has he regulated the exercise of his mercy by our merits.

He hath not (g) dealt with us after our sins; nor rewarded us according to our iniquities.
(g) Who have proved by continual experience that his mercy has always prevailed against our offences.

He hath not dealt with us after our sins,.... God deals with his people, and deals with them roundly, for their sins, reproving them by his Spirit, and by his ministers, and by his chastising rod; but not after or according to them, or as they deserve; in this David acknowledges himself and other saints, with whom he joins, to be sinners, to have been guilty of sins, as none live without them; and that God had taken notice of them, and chastised them for them; but in great moderation, and not according to the due demerit of them:
nor rewarded us according to our iniquities; had he, if every transgression had received its just recompence of reward, they must have been sent to hell; the lake burning with fire and brimstone must have been their portion; the wages of sin is eternal death: the reason why God deals not with nor rewards his people according to the due desert of their sins is because Christ has bore them, and the chastisement of them, and made satisfaction to divine justice for them; see Ezra 9:13.