“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?”
King James Version (KJV)
13:5 Prove yourselves - Whether ye are such as can, or such as cannot, bear the test - This is the proper meaning of the word which we translate, reprobates. Know ye not yourselves, that Jesus Christ is in you - All Christian believers know this, by the witness and by the fruit of his Spirit. Some translate the words, Jesus Christ is among you; that is, in the church of Corinth; and understand them of the miraculous gifts and the power of Christ which attended the censures of the apostle.
2Co 13:5 Examine yourselves. Let there be self-examination. See whether you are in Christ. Know ye not, etc. Christ must dwell in them unless they are reprobate. If Christ is in them it will be seen in the power of a Christian life.