This is how you can recognize the Spirit of God: every spirit that acknowledges that Jesus Christ has come in the flesh is from God, and every spirit that does not acknowledge Jesus is not from God. This is the spirit of the Antichrist, about whose coming you have been told, and that it is already in the world.
Therefore, confess your sins to one another and pray for one another, so that you may be healed. The prayer of a righteous man is powerful and effective.