By this you know the Spirit of God: every spirit who confesses that Jesus Christ has come in the flesh is of God, and every spirit who doesn’t confess that Jesus Christ has come in the flesh is not of God; and this is the spirit of the Antichrist, of whom you have heard that it comes. Now it is in the world already.
So is my word that goes out of my mouth: it will not return to me void, but it will accomplish that which I please, and it will prosper in the thing I sent it to do.