In these verses,

I.The apostle makes an apology for seeming to commend himself. He thought it convenient to protest his sincerity to them, because there were some at Corinth who endeavoured to blast his reputation; yet he was not desirous of vain-glory. And he tells them, 1. That he neither needed nor desired any verbal commendation to them, nor letters testimonial from them, as some others did, meaning the false apostles or teachers, Co2 3:1. His ministry among them had, without controversy, been truly great and honourable, how little soever his person was in reality, or how contemptible soever some would have him thought to be. 2. The Corinthians themselves were his real commendation, and a good testimonial for him, that God was with him of a truth, that he was sent of God: You are our epistle, Co2 3:2. This was the testimonial he most delighted in, and what was most dear to him - they were written in his heart; and this he could appeal to upon occasion, for it was, or might be, known and read of all men. Note, There is nothing more delightful to faithful ministers, nor more to their commendation, than the success of their ministry, evidenced in the hearts and lives of those among whom they labour.

II.The apostle is careful not to assume too much to himself, but to ascribe all the praise to God. Therefore, 1. He says they were the epistle of Christ, Co2 3:3. The apostle and others were but instruments, Christ was the author of all the good that was in them. The law of Christ was written in their hearts, and the love of Christ shed abroad in their hearts. This epistle was not written with ink, but with the Spirit of the living God; nor was it written in tables of stone, as the law of God given to Moses, but on the heart; and that heart not a stony one, but a heart of flesh, upon the fleshy (not fleshly, as fleshliness denotes sensuality) tables of the heart, that is, upon hearts that are softened and renewed by divine grace, according to that gracious promise, I will take away the stony heart, and I will give you a heart of flesh, Eze 36:26. This was the good hope the apostle had concerning these Corinthians (Co2 3:4) that their hearts were like the ark of the covenant, containing the tables of the law and the gospel, written with the finger, that is, by the Spirit, of the living God. 2. He utterly disclaims the taking of any praise to themselves, and ascribes all the glory to God: "We are not sufficient of ourselves, Co2 3:5. We could never have made such good impressions on your hearts, nor upon our own. Such are our weakness and inability that we cannot of ourselves think a good thought, much less raise any good thoughts or affections in other men. All our sufficiency is of God; to him therefore are owing all the praise and glory of that good which is done, and from him we must receive grace and strength to do more." This is true concerning ministers and all Christians; the best are no more than what the grace of God makes them. Our hands are not sufficient for us, but our sufficiency is of God; and his grace is sufficient for us, to furnish us for every good word and work.

Such trust have we - We have the fullest conviction that God has thus accredited our ministry; and that ye are thus converted unto him, and are monuments of his mercy, and proofs of the truth of our ministry.

And such trust have we,.... This refers to what he had said in the latter end of the foregoing chapter, and the beginning of this; as that they made manifest the savoury knowledge of God and Christ everywhere, and were the sweet savour of Christ to many souls; were sufficient in some measure, through the grace of Christ, to preach the Gospel sincerely and faithfully, and were attended with success, had many seals of their ministry, and particularly the Corinthians were so many living epistles of commendations of the power and efficacy of their ministry; such confidence and firm persuasion of the truth of grace on your souls, and of our being the happy instruments of it, we have

through Christ, the grace of Christ,

to God-ward: who is the object of our confidence and hope, and the ground thereof.

And--Greek, "But." "Such confidence, however (namely, of our 'sufficiency,' Co2 3:5-6; Co2 2:16 --to which he reverts after the parenthesis--as ministers of the New Testament, 'not hinting,' Co2 4:1), we have through Christ (not through ourselves, compare Co2 3:18) toward God" (that is, in our relation to God and His work, the ministry committed by Him to us, for which we must render an account to Him). Confidence toward God is solid and real, as looking to Him for the strength needed now, and also for the reward of grace to be given hereafter. Compare Act 24:15, "hope toward God." Human confidence is unreal in that it looks to man for its help and its reward.