Beloved, believe not every spirit, but test the spirits whether they are of God: because many false prophets are gone out into the world. By this you know the Spirit of God: Every spirit that confesses that Jesus Christ is come in the flesh is of God: And every spirit that confesses not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, of which you have heard that it should come; and even now already is it in the world. You are of God, little children, and have overcome them: because greater is he that is in you, than he that is in the world. (1 John 4:1-4)