Who is a liar - That is, who is false; who maintains an erroneous doctrine; who is an impostor, if he is not? The object of the apostle is to specify one of the prevailing forms of error, and to show that, however plausible the arguments might be by which it was defended, it was impossible that it should be true. Their own knowledge of the nature of religion must convince them at once that this opinion was false.

That denieth that Jesus is the Christ - It would seem that the apostle referred to a class who admitted that Jesus lived, but who denied that he was the true Messiah. On what grounds they did this is unknown; but to maintain this was, of course, the same as to maintain that he was an impostor. The ground taken may have been that he had not the characteristics ascribed to the Messiah in the prophets; or that he did not furnish evidence that he was sent from God; or that he was an enthusiast. Or perhaps some special form of error may be referred to, like that which is said to have been held by Corinthus, who in his doctrine separated Jesus from Christ, maintaining them to be two distinct persons. - "Doddridge."

He is antichrist - (See the notes at 1 John 2:18). He has all the characteristics and attributes of antichrist; or, a doctrine which practically involves the denial of both the Father and the Son, must be that of antichrist.

That denieth the Father and the Son - That denies the special truths pertaining to God the Father, and to the Son of God. The charge here is not that they entertained incorrect views of God "as such" - as almighty, eternal, most wise, and good; but that they denied the doctrines which religion taught respecting God as Father and Son. Their opinions tended to a denial of what was revealed respecting God as a Father - not in the general sense of being the "Father" of the universe, but in the particular sense of his relation to the Son. It cannot be supposed that they denied the existence and perfections of God as such, nor that they denied that God is a "Father" in the relation which he sustains to the universe; but the meaning must be that what they held went to a practical denial of that which is special to the true God, considered as sustaining the relation of a Father to his Son Jesus Christ. Correct views of the Father could not be held without correct views of the Son; correct views of the Son could not be held without correct views of the Father. The doctrines respecting the Father and the Son were so connected that one could not be held without holding the other, and one could not be denied without denying the other. Compare the Matthew 11:27 note; John 5:23 note. No man can have just views of God the Father who has not right apprehensions of the Son. As a matter of fact in the world, people have right apprehensions of God only when they have correct views of the character of the Lord Jesus Christ.

Who is a liar but he that denieth that Jesus is the Christ? - Here we see some of the false doctrines which were then propagated in the world. There were certain persons who, while they acknowledged Jesus to be a Divine teacher, denied him to be the Christ, i.e. the Messiah.

He is antichrist, that denieth the Father and the Son, - He is antichrist who denies the supernatural and miraculous birth of Jesus Christ, who denies Jesus to be the Son of God, and who denies God to be the Father of the Lord Jesus; thus he denies the Father and the Son. The Jews in general, and the Gnostics in particular, denied the miraculous conception of Jesus; with both he was accounted no more than a common man, the son of Joseph and Mary. But the Gnostics held that a Divine person, Aeon, or angelical being, dwelt in him; but all things else relative to his miraculous generation and Divinity they rejected. These were antichrists, who denied Jesus to be the Christ.

Who is a liar, but he that denieth that Jesus is the Christ?.... Or that very Christ, and true Messiah, who was spoken of by all the prophets, since the beginning of the world, and so much, and so long desired by the Old Testament saints: he that denies that Jesus of Nazareth is the Messiah of the prophets, is not indeed the only liar in the world, but he is the greatest of liars; this is a consummate lie, being opposed to a glaring truth, to a fact clear an indisputable; and which rests not merely on the testimony of Jesus, who is truth itself, and who, in express words, more than once, declared and asserted himself to be the Christ; but all the characters of the Messiah, everything that is said of him in the Prophets, meet in Jesus, and the miracles which were done by him are flagrant proofs and undeniable evidences of his being the Christ of God; and all the apostles believed, and were sure that he was Christ, the Son of the living God: to which may be added the testimony of John, who was sent, and came to bear witness of him, and did; and who was a prophet, and a man of great probity and integrity. But there was a greater witness than he; even God himself, by a voice from heaven, bore a testimony to him; and angels, at his incarnation, declared him to be the Saviour, which is Christ the Lord; yea, the devil himself, who is a liar, and the father of ties in other things, knew and owned Jesus to be the Christ; so that those that deny him are the worst of liars, even worse than the devil himself. This may have regard not only to the Jews, that deny Jesus to be the Messiah, but chiefly to such who went by the name of Christians; who denied either his proper deity, or real humanity, as Ebion and Cerinthus, which was denying him to be the God-man, the Mediator, and Messiah; and is true of all such that deny him in any of his offices, or in things relating to them, as his Gospel, and any of the peculiar doctrines of it, delivered by him, and so deny his prophetic office; or any of his ordinances, institutions, and appointments, as lawgiver in his house, and King of saints, and so deny him in his kingly office; or reject him as the alone Saviour, joining their own works with him, in the business of salvation, and oppose his sacrifice and satisfaction, and despise his imputed righteousness, and so deny him in his priestly office. Now these are some of the liars, and these some of the doctrinal lies, which are not of the truth, as in 1Jo_2:21.

He is antichrist that denieth the Father and the Son: that denies the Father of Christ to be the Creator of the world, but asserts that it was made by angels, as some ancient heretics did; or that the Father of Christ is not the God of the Old Testament, as Marcion; or that denies that God is the Father of Christ, and that Christ is the Son of God; who will not allow that there is any such relation in nature between them; who affirm that Christ is only the Son of God by adoption, or because of his love to him, or because of his incarnation and resurrection from the dead; or that he is not his true and proper Son, only in a figurative and metaphorical sense; that he is not the natural and eternally begotten Son of God, only by office, and as Mediator, and that God is only his Father, as having installed him into an office; or he that denies that these two are distinct from each other, but affirms that Father is the Son, and the Son is the Father, and so confounds them both, and, by confounding both, denies that there are either Father or Son; and all such persons are antichrists, or opposers of Christ.

A liar (ὁ ψεύστης)

Rev., correctly, "the liar." For a similar interrogative phrase see 1 John 5:5. It marks the lively feeling with which the apostle writes. By the definite article, the liar, the lie is set forth in its concrete personality: the one who impersonates all that is false, as antichrist represents every form of hostility and opposition to Christ. The denial that Jesus is the Christ is the representative falsehood. He that denies is the representative liar.

He that denieth (ὁ ἀρνούμενος)

The article with the participle denotes the habitual denial. Lit., the one denying, the one who habitually represents this attitude towards Christ. The words are aimed at the heresy of Cerinthus, a man of Jewish decent and educated at Alexandria. He denied the miraculous conception of Jesus, and taught that, after His baptism, the Christ descended upon Him in the form of a dove, and that He then announced the unknown Father and wrought miracles; but that, towards the end of His ministry, the Christ departed again from Jesus, and Jesus suffered and rose from the dead, while the Christ remained impassible (incapable of suffering) as a spiritual being.

The Father

The title the Father occurs always in its simple form in the Epistle. Never his or our Father, or the Father in heaven.

{23} Who is a liar but he that denieth that Jesus is the {r} Christ? He is antichrist, that denieth the Father and the Son.

(23) He shows now plainly the false doctrine of the antichrist's, that is, that either they fight against the person of Christ, or his office, or both together and at once. They who do so, boast and brag of God in vain, for in denying the Son, the Father also is denied.

(r) Is the true Messiah.

2:22 Who is a liar but he that denieth that Jesus is the Christ? Hence they will know how to reject these antichrists who lyingly deny Jesus Christ.

2:22 Who is that liar - Who is guilty of that lying, but he who denies that truth which is the sum of all Christianity? That Jesus is the Christ; that he is the Son of God; that he came in the flesh, is one undivided truth. and he that denies any part of this, in effect denies the whole. He is antichrist - And the spirit of antichrist, who in denying the Son denies the Father also.

22. a liar-Greek, "Who is the liar?" namely, guilty of the lie just mentioned (1Jo 2:21).

that Jesus is the Christ-the grand central truth.

He is Antichrist-Greek, "the Antichrist"; not however here personal, but in the abstract; the ideal of Antichrist is "he that denieth the Father and the Son." To deny the latter is virtually to deny the former. Again, the truth as to the Son must be held in its integrity; to deny that Jesus is the Christ, or that He is the Son of God, or that He came in the flesh, invalidates the whole (Mt 11:27).

2:18-23 Every man is an antichrist, who denies the Person, or any of the offices of Christ; and in denying the Son, he denies the Father also, and has no part in his favour while he rejects his great salvation. Let this prophecy that seducers would rise in the Christian world, keep us from being seduced. The church knows not well who are its true members, and who are not, but thus true Christians were proved, and rendered more watchful and humble. True Christians are anointed ones; their names expresses this: they are anointed with grace, with gifts and spiritual privileges, by the Holy Spirit of grace. The great and most hurtful lies that the father of lies spreads in the world, usually are falsehoods and errors relating to the person of Christ. The unction from the Holy One, alone can keep us from delusions. While we judge favourably of all who trust in Christ as the Divine Saviour, and obey his word, and seek to live in union with them, let us pity and pray for those who deny the Godhead of Christ, or his atonement, and the new-creating work of the Holy Ghost. Let us protest against such antichristian doctrine, and keep from them as much as we may.