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.

18. Little children—same Greek as 1Jo 2:13; children in age. After the fathers and young men were gone, "the last time" with its "many Antichrists" was about to come suddenly on the children. "In this last hour we all even still live" [Bengel]. Each successive age has had in it some of the signs of "the last time" which precedes Christ's coming, in order to keep the Church in continual waiting for the Lord. The connection with 1Jo 2:15-17 is: There are coming those seducers who are of the world (1Jo 4:5), and would tempt you to go out from us (1Jo 2:19) and deny Christ (1Jo 2:22).

as ye have heard—from the apostles, preachers of the Gospel (for example, 2Th 2:3-10; and in the region of Ephesus, Ac 20:29, 30).

shall come—Greek, "cometh," namely, out of his own place. Antichrist is interpreted in two ways: a false Christ (Mt 24:5, 24), literally, "instead of Christ"; or an adversary of Christ, literally, "against Christ." As John never uses pseudo-Christ, or "false Christ," for Antichrist, it is plain he means an adversary of Christ, claiming to himself what belongs to Christ, and wishing to substitute himself for Christ as the supreme object of worship. He denies the Son, not merely, like the pope, acts in the name of the Son, 2Th 2:4, "Who opposeth himself (Greek, " ANTI-keimenos") [to] all that is called God," decides this. For God's great truth, "God is man," he would substitute his own lie, "man is God" [Trench].

are there—Greek, "there have begun to be"; there have arisen. These "many Antichrists" answer to "the spirit of lawlessness (Greek) doth already work." The Antichristian principle appeared then, as now, in evil men and evil teachings and writings; but still "THE Antichrist" means a hostile person, even as "THE Christ" is a personal Saviour. As "cometh" is used of Christ, so here of Antichrist, the embodiment in his own person of all the Antichristian features and spirit of those "many Antichrists" which have been, and are, his forerunners. John uses the singular of him. No other New Testament writer uses the term. He probably answers to "the little horn having the eyes of a man, and speaking great things" (Da 7:8, 20); "the man of sin, son of perdition" (2Th 2:3); "the beast ascending out of the bottomless pit" (Re 11:7; 17:8), or rather, "the false prophet," the same as "the second beast coming up out of the earth" (Re 13:11-18; 16:13).