“Examine yourselves to see whether you are in the faith; test yourselves. Do you not realize that Christ Jesus is in you—unless, of course, you fail the test?” 2 Corinthians 13:5
How do we know if we are in the faith? We examine ourselves to see if we are living by God’s power. Paul expected there to be evidence. Is there evidence of God’s enabling? Is there evidence of the fruit of the Spirit (Galatians 5:22-23)? Is there evidence of more control over our negative emotions? Change may be gradual but having Jesus in our lives makes a difference.