Who is the liar but he who denies that Jesus is the Christ? This is the Antichrist, he who denies the Father and the Son.
We now see that Christ, is denied, whenever those things which peculiarly belong to him, are taken away from him. And as Christ is the end of the law and of the gospel, and has in himself all the treasures of wisdom and knowledge, so he is the mark at which all heretics level and direct their arrows. Therefore the Apostle does not, without reason, make those the chief impostors, who fight against Christ, in whom the full truth is exhibited to us. 