8 Bible Verses about Apostles, Identfication

If I am not an apostle to others, yet surely I am to you; for the seal of my apostleship are ye in the Lord.

For if he that cometh preacheth another Jesus, whom we did not preach, or if ye receive another spirit, which ye did not receive, or another gospel, which ye did not accept, well might ye bear with it. For I suppose that I am in no respect behind the very foremost apostles.

I have become a fool; it is ye that compelled me. For I ought to have been commended by you; for in nothing was I behind the very foremost apostles, though I am nothing.

Are we beginning again to recommend ourselves? Or do we need, like some others, letters of recommendation to you, or letters of recommendation from you? Ye are our letter, written in our hearts, known and read by all men; since ye are manifestly shown to be a letter of Christ by means of our service, written not with ink, but with the Spirit of the living God; not on tablets of stone, but on fleshly tablets of the heart.

Truly the signs of an apostle were wrought among you with all endurance, by signs, and wonders, and mighty deeds.

and they went forth, and preached every where, the Lord working with them, and confirming the word by the signs which followed it.]

And many signs and wonders were wrought among the people by the hands of the apostles; and they were all with one accord in Solomons porch.

by the power of signs and wonders, by the power of the Spirit; so that from Jerusalem, and in the country around even to Illyricum, I have fully made known the gospel of Christ;