Who is a liar but he that denies that Jesus is the Christ? He is antichrist, that denies the Father and the Son.
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Augustine of Hippo
AD 430
For hear and see. Certainly all who go out from the Church, and are cut off from the unity of the Church, are antichrists; let no man doubt it: for the apostle himself has marked them, They went out from us, but they were not of us; for if they had been of us, they would no doubt have continued with us. Therefore, whoso continue not with us, but go out from us, it is manifest that they are antichrists. And how are they proved to be antichrists? By lying. And who is a liar, but he that denies that Jesus is the Christ? 1 John 2:22 Let us ask the heretics: where do you find a heretic that denies that Jesus is the Christ? See now, my beloved, a great mystery. Mark what the Lord God may have inspired us withal, and what I would fain work into your minds. Behold, they went out from us, and turned Donatists: we ask them whether Jesus be the Christ; they instantly confess that Jesus is the Christ. If then that person is an antichrist, who denies that Jesus is the Christ, neither can they call ...
He who denieth that Jesus is the Christ? He is antichrist: is in a special manner an adversary of Christ and the Christian religion, when he denies Jesus to be the Messias, or to have been from eternity the true Son of God.
He who denieth him to be the Son, neither hath he the Father. He who denies either of these truths denieth both. He who denies the Son of God to be the eternal Son, denies the Father to be the eternal Father. (Witham)
John, moreover, brands that man as "a liar "who "denieth that Jesus is the Christ; "whilst on the other hand he declares that "every one is born of God who believeth that Jesus is the Christ."
