2 Corinthians 13:3-5

since you seek proof that Christ is speaking in me. He is not weak in dealing with you, but is powerful among you. For he was crucified in weakness, but lives by the power of God. For we also are weak in him, but in dealing with you we will live with him by the power of God. Examine yourselves, to see whether you are in the faith. Test yourselves. Or do you not realize this about yourselves, that Jesus Christ is in you?—unless indeed you fail to meet the test!