1-corinthians 15:10

Grace - Kindness; favor.

Vain - Empty; foolish; useless.

But, by the grace of God I am what I am - God, by his mere grace and good will, has called me to be an apostle, and has denominated me such.

And his grace, etc. - Nor have I been unfaithful to the Divine call; I used the grace which he gave me; and when my labors, travels, and sufferings are considered, it will be evident that I have labored more abundantly than the whole twelve. This was most literally true.

Yet not I, but the grace of God - It was not through my own power or wisdom that I performed these things, but through the Divine influence which accompanied me.

But by the grace of God I am what I am - By the "favor" or mercy of God. What I have is to be traced to him, and not to any native tendency to goodness, or any native inclination to his service, or to any merit of my own. All my hopes of heaven; all my zeal; all my success; all my piety; all my apostolic endowments, are to be traced to him. Nothing is more common in the writings of Paul, than a disposition to trace all that he had to the mere mercy and grace of God. And nothing is a more certain indication of true piety than such a disposition. The reason why Paul here introduces the subject seems to be this. He had incidentally, and undesignedly, introduced a comparison in one respect between himself and the other apostles. He had not had the advantages which they had. Most of all, he was overwhelmed with the recollection that he had been a persecutor. He felt, therefore, that there was a special obligation resting on him to make up by diligence for the lack of their advantages of an early personal conversation with the Lord Jesus, and to express his gratitude that so great a sinner had been made an apostle. He, therefore, says, that he had not been idle. He had been enabled by the grace of God, to labor more than all the rest, and he had thus shown that he had not been insensible of his obligations.

But I laboured more abundantly ... - I was more diligent in preaching; I encountered more perils; I have exerted myself more. The records of his life, compared with the records of the other apostles, fully show this.

Yet not I-- I do not attribute it to myself. I would not boast of it. The fact is plain, and undeniable, that I have so labored. But I would not attribute it to myself. I would not be proud or vain. I would remember my former state; would remember that I was a persecutor; would remember that all my disposition to labor, and all my ability, and all my success, are to be traced to the mere favor and mercy of God. So every man who has just views feels who has been favored with success in the ministry. If a man has been successful as a preacher; if he has been self-denying, laborious, and the instrument of good, he cannot be insensible to the fact, and it would be foolish affectation to pretend ignorance of it. But he may feel that it is all owing to the mere mercy of God; and the effect will be to produce humility and gratitude, not pride and self-complacency.

15:10 I laboured more than they all - That is, more than any of them, from a deep sense of the peculiar love God had shown me. Yet, to speak more properly, it is not I, but the grace of God that is with me - This it is which at first qualified me for the work, and still excites me to zeal and diligence in it.