If I be not an apostle unto others - "If I have not given evidence to others of my apostolic mission; of my being sent by the Lord Jesus, yet I have to you. Assuredly you, among whom I have labored so long and so successfully, should not doubt that I am sent from the Lord. You have been well acquainted with me; you have witnessed my endowments, you have seen my success, and you have had abundant evidence that I have been sent on this great work. It is therefore strange in you to doubt my apostolic commission; and it is unkind in you so to construe my declining to accept your contributions and aid for my support, as if I were conscious that I was not entitled to that."

For the seal of mine apostleship. - Your conversion is the demonstration that I am an apostle. Paul uses strong language. He does not mean to say that their conversion furnished some evidence that he was an apostle; but that it was absolute proof, and unbreakable demonstration, that he was an apostle. A "seal" is that which is affixed to a deed, or other instrument, to make it firm, secure, and indisputable. It is the proof or demonstration of the validity of the conveyance, or of the writing; see the notes at John 3:33; John 6:27. The sense here is, therefore, that the conversion of the Corinthians was a certain demonstration that he was an apostle, and should be so regarded by them, and treated by them. It was such a proof:

(1) Because Paul claimed to be an apostle while among them, and God blessed and owned this claim;

(2) Their conversion could not have been accomplished by man. It was the work of God. It was the evidence then which God gave to Paul and to them, that he was with him, and had sent him.

(3) they knew him, had seen him, heard him, were acquainted with his doctrines and manner of life, and could bear testimony to what he was, and what he taught.

We may remark, that the conversion of sinners is the best evidence to a minister that he is sent of God. The divine blessing on his labors should cheer his heart, and lead him to believe that God has sent and that he approves him. And every minister should so live and labor, should so deny himself, that he may be able to appeal to the people among whom he labors that he is a minister of the Lord Jesus.

If I be not an apostle unto others - If there be other Churches which have been founded by other apostles; yet it is not so with you.

The seal of mine apostleship are ye - Your conversion to Christianity is God's seal to my apostleship. Had not God sent me, I could not have profited your souls.

The σφραγις or seal, was a figure cut in a stone, and that set in a ring, by which letters of credence and authority were stamped. The ancients, particularly the Greeks, excelled in this kind of engraving. The cabinets of the curious give ample proof of this; and the moderns contend in vain to rival the perfection of those ancient masters.

In the Lord - The apostle shows that it was by the grace and influence of God alone that he was an apostle, and that they were converted to Christianity.

If I be not an apostle unto others,.... This is said by way of supposition, not concession; for he was an apostle to many others; he was an apostle of the Gentiles in general; as the apostleship of the circumcision belonged to Peter, that of the uncircumcision fell to his share: but however, as if he should say, be that as it will,

yet doubtless I am to you; all the signs of apostleship were wrought among them; not only the grace of God was implanted in them under his ministry, but the extraordinary gifts of the Spirit were received by them through it; and many signs, wonders, and mighty deeds, were done in the midst of them by him: see 2 Corinthians 12:12 which were sufficient to put the matter quite out of doubt with them:

for the seal of mine apostleship, are ye in the Lord; alluding to the sealing of deeds and writings, which render them authentic; or to the sealing of letters, confirming the truth of what is therein expressed; and the sense is, that their being converted persons, and so openly in the Lord, in union with him; or being made new creatures by the power of his grace, through his preaching, was an authentic proof of his apostleship, and served him instead of a letter testimonial and recommendatory; see 2 Corinthians 3:1. Some copies read, "the seal of my epistle", and so the Ethiopic version.

Seal (σφραγίς)

See on Romans 4:11; see on John 3:33; see on Revelation 22:10.

If I be not an apostle unto others, yet doubtless I am to you: for the {b} seal of mine apostleship are ye in the Lord.

(b) As a seal by which it sufficiently appears that God is the author of my apostleship.

9:2 For the seal of mine apostleship ye are. The existence of the church at Corinth, founded by his labors, proved that he was their apostle, at least.

9:2 Ye are the seal of my apostleship - Who have received not only faith by my mouth, but all the gifts of the Spirit by my hands.

2. yet doubtless-yet at least I am such to you.

seal of mine apostleship-Your conversion by my preaching, accompanied with miracles ("the signs of an apostle," Ro 15:18, 19; 2Co 12:12), and your gifts conferred by me (1Co 1:7), vouch for the reality of my apostleship, just as a seal set to a document attests its genuineness (Joh 3:33; Ro 4:11).

9:1-14 It is not new for a minister to meet with unkind returns for good-will to a people, and diligent and successful services among them. To the cavils of some, the apostle answers, so as to set forth himself as an example of self-denial, for the good of others. He had a right to marry as well as other apostles, and to claim what was needful for his wife, and his children if he had any, from the churches, without labouring with his own hands to get it. Those who seek to do our souls good, should have food provided for them. But he renounced his right, rather than hinder his success by claiming it. It is the people's duty to maintain their minister. He may wave his right, as Paul did; but those transgress a precept of Christ, who deny or withhold due support.