Here is, I. A moral prognostication of the time; the end is coming: Little children, it is the last time, Jo1 2:18. Some may suppose that the apostle here addresses the first rank of Christians again; the juniors are most apt to be seduced, and therefore, "Little children, you that are young in religion, take heed to yourselves that you be not corrupted." But it may be, as elsewhere, a universal appellation, introductive of an alarm to all Christians: "Little children, it is the last time; our Jewish polity in church and state is hastening to an end; the Mosaic institution and discipline are just upon vanishing away; Daniel's weeks are now expiring; the destruction of the Hebrew city and sanctuary is approaching, the end whereof must be with a flood, and to the end of the war desolations are determined," Dan 9:26. It is meet that the disciples should be warned of the haste and end of time, and apprised as much as may be of the prophetic periods of time.

II.The sign of this last time: Even now there are many antichrists (Jo1 2:18), many that oppose the person, doctrine, and kingdom of Christ. It is a mysterious portion of providence that antichrists should be permitted; but, when they have come, it is good and safe that the disciples should be informed of them; ministers should be watchmen to the house of Israel. Now it should be no great offence nor prejudice to the disciples that there are such antichrists: 1. One great one has been foretold: As you have heard that antichrist shall come, Jo1 2:18. The generality of the church have been informed by divine revelation that there must be a long and fatal adversary to Christ and his church, Th2 2:8-10. No wonder then that there are many harbingers and forerunners of the great one: Even now there are many antichrists, the mystery of iniquity already worketh. 2. They were foretold also as the sign of this last time. For there shall arise false Christs and false prophets, and shall show great signs and wonders, insomuch that, if it were possible, they shall deceive the very elect, Mat 24:24. And these were the forerunners of the dissolution of the Jewish state, nation, and religion: Whereby we know it is the last time, Jo1 2:18. Let the prediction that we see there has been of seducers arising in the Christian world fortify us against their seduction.

III.Some account of these seducers or antichrists. 1. More positively. They were once entertainers or professors of apostolical doctrine: "They went out from us (Jo1 2:19), from our company and communion;" possibly from the church of Jerusalem, or some of the churches of Judea, as Act 15:1, Certain men came down from Judea, and taught the brethren, etc. The purest churches may have their apostates and revolters; the apostolic doctrine did not convert all whom it convinced of its truth. 2. More privately. "They were not inwardly such as we are: But they were not of us; they had not from the heart obeyed the form of sound doctrine delivered to them; they were not of our union with Christ the head." Then here is, (1.) The reason upon which it is concluded that they were not of us, were not what they pretended, or what we are, and that is their actual defection: "For, if they had been of us, they would no doubt have continued with us (Jo1 2:19); had the sacred truth been rooted in their hearts it would have held them with us; had they had the anointing from above, by which they had been made true and real Christians, they would not have turned antichrists." Those that apostatize from religion sufficiently indicate that, before, they were hypocrites in religion: those who have imbibed the spirit of gospel truth have a good preservative against destructive error. (2.) The reason why they are permitted thus to depart from apostolical doctrine and communion - that their insincerity may be detected: But this was done (or they went out) that they might be made manifest that they were not all of us, Jo1 2:19. The church knows not well who are its vital members and who are not; and therefore the church, considered as internally sanctified, may well be styled invisible. Some of the hypocritical must be manifested here, and that for their own shame and benefit too, in their reduction to the truth, if they have not sinned unto death, and for the terror and caution of others. You therefore, beloved, seeing you know these things before, beware lest you also, being led away with the error of the wicked, fall from your own stedfastness. But grow in grace, etc., Pe2 3:17, Pe2 3:18.

They went out from us - These heretics had belonged to our Christian assemblies, they professed Christianity, and do so still; but we apostles did not commission them to preach to you, for they have disgraced the Divine doctrine with the most pernicious opinions; they have given up or explained away its most essential principles; they have mingled the rest with heathenish rites and Jewish glosses. While, therefore, we acknowledge that they once belonged to us, we assert that they are not of us. They are not Christians; we abhor their conduct and their creed. We never sent them to teach.

They were not of us - For a considerable time before they left our assemblies they gave proofs that they had departed from the faith; for if they had been of us - if they had been apostles, and continued in the firm belief of the Christian doctrines, they would not have departed from us to form a sect of themselves.

That they were not all of us - They were not expelled from the Christian Church; they were not sent out by us; but they separated from it and us. None of them had been inspired as we apostles were, though they pretended to a very high teaching; but their separating from us manifested that they were not taught, as we were, by the Spirit of God. These false teachers probably drew many sincere souls away with them; and to this it is probable the apostle alludes when he says, they were not All of us. Some were; others were not.

They went out from us,.... Which intends not the persons that went down from Judea to Antioch, Act 15:1, who preached destructive doctrines to the Gentiles, which the apostles and the church of Judea disowned and censured; by which it appeared, that all the preachers of these doctrines were not of them, and of the same mind with them: for this sense makes these antichrists to be only preachers; whereas, though many of them might be such, yet not all; for whoever, in a private capacity denied the Father and the Son, or that Christ was come in the flesh, was antichrist; and to these private believers are opposed in Jo1 2:20; and it also makes the "us" to be the apostles, whereas they were all dead but John; and these antichrists were men that had risen up then in the last time, and therefore could not, with propriety, be said to go out from the apostles; besides, whenever the apostle uses this pronoun "us", he includes with himself all true believers, and may more especially here intend the churches of Asia; or rather the members of the church at Ephesus, where he was; nor is it likely he should have in view the church of Judea, and a case in which that was concerned near forty years ago: moreover, such a sense makes the going out to be merely local and corporeal, and which is in itself not criminal; the persons that went from Judea to Antioch were not blamable for going thither, nor for going out from the apostles thither, but for troubling the disciples with words, to the subverting of their souls; nor was a corporeal departure from the apostles any evidence of not being of the same mind with them; for they often departed one from other, yet continued of the same mind, and in the same faith: but the sense is, that there were some persons in the Apostle John's time, who had made a profession of religion, were members of the church, and some of them perhaps preachers, and yet they departed from the faith, and dropped their profession of it, and withdrew themselves from the church, or churches to which they belonged, and set up separate assemblies of their own:

but they were not of us: they were of the church, and of the same mind with it, at least in profession, antecedent to their going out; for had they not been in communion with the church, they could not be properly said to go out of it; and if they had not been of the same mind and faith in profession, they could not be said to depart from it; but they were not truly regenerated by the grace of God, and so apparently were not of the number, of God's elect: notwithstanding their profession and communion with the church, they were of the world, and not of God; they were not true believers; they had not that anointing which abides, and from which persons are truly denominated Christians, or anointed ones:

for if they had been of us, they would no doubt have continued with us; in the doctrine of the apostles, and in the fellowship of the church, as true believers do: if their hearts had been right with God, they would have remained steadfast to him, his Gospel, truths, and ordinances, and faithful with his saints; for such who are truly regenerate are born of an incorruptible seed, and those that have received the anointing which makes them truly Christians, that abides, as does every true grace, faith, hope, and love; and such who are truly God's elect cannot possibly fall into such errors and heresies as these did, and be finally deceived, as they were:

but they went out; "they went out from us", so the Syriac version reads;

that they might be made manifest that they were not all of us; the word "all" is left out in the Syriac version. The defection and apostasy of these persons were permitted by God, that it might appear they had never received the grace of God in truth; and their going out was in such a manner, that it was a certain argument that they were not of the elect; since they became antichrists, denied the deity or sonship of Christ, or that he was come in the flesh, or that he was the Christ, and therefore are said to be of the world, and not of God, 1Jo_2:22, so that this passage furnishes out no argument against the saints' perseverance, which is confirmed in Jo1 2:20.

out from us--from our Christian communion. Not necessarily a formal secession or going out: thus Rome has spiritually gone out, though formally still of the Christian Church.

not of us--by spiritual fellowship (Jo1 1:3). "They are like bad humors in the body of Christ, the Church: when they are vomited out, then the body is relieved; the body of Christ is now still under treatment, and has not yet attained the perfect soundness which it shall have only at the resurrection" [AUGUSTINE, Ten Homilies on the First Epistle of John, Homily 3.4].

they would . . . have continued--implying the indefectibility of grace in the elect. "Where God's call is effectual, there will be sure perseverance" [CALVIN]. Still, it is no fatal necessity, but a "voluntary necessity" [DIDYMUS], which causes men to remain, or else go from the body of Christ. "We are either among the members, or else among the bad humors. It is of his own will that each is either an Antichrist, or in Christ" [AUGUSTINE]. Still God's actings in eternal election harmonize in a way inexplicable to us, with man's free agency and responsibility. It is men's own evil will that chooses the way to hell; it is God's free and sovereign grace that draws any to Himself and to heaven. To God the latter shall ascribe wholly their salvation from first to last: the former shall reproach themselves alone, and not God's decree, with their condemnation (Jo1 3:9; Jo1 5:18).

that they were not all of us--This translation would imply that some of the Antichrists are of us! Translate, therefore, "that all (who are for a time among us) are not of us." Compare Co1 11:19, "There must be heresies among you, that they which are approved may be made manifest among you." For "were" some of the oldest manuscripts read "are." Such occasions test who are, and who are not, the Lord's people.