2 Corinthians 12:12

The marks that signify the genuine apostle were exhibited among you in my perfect patience, in signs, wonders, and wonder-works.

John 4:48

Then Jesus said to him, "Unless you see signs and wonders, you will never believe."

Romans 15:18-19

For I would venture to mention only what Christ has accomplished through me in bringing the heathen peoples to obedience, by word and by work,

1 Corinthians 1:5-7

because you have in everything been richly blessed through union with Him, with perfect expression and fullness of knowledge.

1 Corinthians 9:1-2

Am I not free? Am I not an apostle? Have I not seen Jesus our Lord? Are you not the product of my work for the Lord?

1 Corinthians 14:18

Thank God, I speak in ecstasy more than any of you.

2 Corinthians 4:2

On the other hand, I have renounced all underhanded, disgraceful methods; I neither practice cunning nor do I tamper with God's message, but by clear and candid statements of truth I try to commend myself to every human conscience in God's sight.

2 Corinthians 6:4-10

On the contrary, I am trying in everything to prove to people that I am a true servant of God: by my tremendous endurance in sorrows, distresses, difficulties;

2 Corinthians 11:4

For if anybody comes along and preaches another Jesus than the one I preached, or you receive another spirit different from the one you did receive or a glad message different from the one you did accept, you listen to it all right!

2 Corinthians 11:6

Although I am untrained as an orator, yet I am not so in the field of knowledge. Surely, I have always made that perfectly clear to you.

Treasury of Scripture Knowledge

Summary

Truly the signs of an apostle were wrought among you in all patience, in signs, and wonders, and mighty deeds.

Bible References

General references

2 Corinthians 4:2
On the other hand, I have renounced all underhanded, disgraceful methods; I neither practice cunning nor do I tamper with God's message, but by clear and candid statements of truth I try to commend myself to every human conscience in God's sight.
2 Corinthians 6:4
On the contrary, I am trying in everything to prove to people that I am a true servant of God: by my tremendous endurance in sorrows, distresses, difficulties;
2 Corinthians 11:4
For if anybody comes along and preaches another Jesus than the one I preached, or you receive another spirit different from the one you did receive or a glad message different from the one you did accept, you listen to it all right!
Romans 15:18
For I would venture to mention only what Christ has accomplished through me in bringing the heathen peoples to obedience, by word and by work,
1 Corinthians 1:5
because you have in everything been richly blessed through union with Him, with perfect expression and fullness of knowledge.
1 Corinthians 9:2
If I am not an apostle to other people, I certainly am one to you, for you yourselves, by virtue of your union with the Lord, are the proof of my apostleship.
1 Corinthians 14:18
Thank God, I speak in ecstasy more than any of you.