Little children, it is the last hour: and as you have heard that antichrist is coming, even now many antichrists have come, from which we know that it is the last hour.

Who is a liar except the one denying that Jesus is the Christ? This one is the antichrist, the one denying the Father and the Son.

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.