2 Corinthians 13:6

But I hope you will acknowledge that we do not fail the test nor are we to be rejected.

2 Corinthians 12:20

For I am afraid that perhaps when I come I may find you not to be as I wish, and that you may find me not as you wish—that perhaps there may be strife, jealousy, angry tempers, disputes, slander, gossip, arrogance and disorder;

2 Corinthians 13:3-4

since you seek [forensic] proof that Christ is speaking in and through me. He is not weak or ineffective in dealing with you, but powerful within you.

2 Corinthians 13:10

For this reason I am writing these things while absent from you, so that when I come, I will not need to deal severely [with you], in my use of the authority which the Lord has given me [to be used] for building you up and not for tearing you down.

Treasury of Scripture Knowledge

Summary

But I trust that ye shall know that we are not reprobates.

Bible References

General references

2 Corinthians 13:3
since you seek [forensic] proof that Christ is speaking in and through me. He is not weak or ineffective in dealing with you, but powerful within you.
2 Corinthians 12:20
For I am afraid that perhaps when I come I may find you not to be as I wish, and that you may find me not as you wish—that perhaps there may be strife, jealousy, angry tempers, disputes, slander, gossip, arrogance and disorder;