2 Corinthians

But I keep under my body, and bring it into subjection: lest that by any means, when I have preached to others, I myself should be a castaway.

Examine yourselves, whether ye be in the faith; prove your own selves. Know ye not your own selves, how that Jesus Christ is in you, except ye be reprobates?

For I fear, lest, when I come, I shall not find you such as I would, and that I shall be found unto you such as ye would not: lest there be debates, envyings, wraths, strifes, backbitings, whisperings, swellings, tumults:

Now as Jannes and Jambres withstood Moses, so do these also resist the truth: men of corrupt minds, reprobate concerning the faith.

Since ye seek a proof of Christ speaking in me, which to you-ward is not weak, but is mighty in you.