1.Having this ministry. He now returns to a commendation of himself personally, from which he had digressed into a general discussion, in reference to the dignity of the gospel. As, therefore, he has been treating of the nature of the gospel, so he now shows how faithful and upright a minister of it he is. He has previously shown, what is the true gospel of Christ. He now shows what he preaches to be such. “Having,” says he, “this ministry” — that ministry, the excellence of which he had extolled in terms so magnificent, and the power and usefulness of which he had so abundantly shown forth. Hence, in order that he may not seem to extol himself too much, he premises that it was not by his own efforts, or by his own merits, that he had reached such a pinnacle of honor, but had been led forward by the mercy of God exclusively. Now there was more implied in making the mercy of God the reason of his Apostleship, than if he had attributed it to the grace of God. We faint not (423) that is, we are not deficient in our duty, (424) so as not to discharge it with fidelity.