Thematic Bible: What to try

Beloved, believe not every spirit, but prove the spirits if they are of God: because many false prophets have gone out into the world. In this you know the Spirit of God: every spirit which confesses that Jesus Christ has come in the flesh is of God: and every spirit which does not confess Jesus is not of God: and this is the spirit of antichrist, which you have heard that he is coming; and now he is already in the world.