John Gill Commentary 1 John 4

Beloved, believe not every spirit
The apostle having mentioned the word "spirit" in the latter part of the preceding chapter, takes an occasion from thence to return to what he had been suggesting in the "second" chapter, concerning the many antichrists that then were, and whom he points out, and here cautions against. By "every spirit" he means, either every doctrine that is pretended to come from the Spirit of God, or every teacher, who professes to be qualified and sent by him, and to have his light, knowledge, and doctrine from him. Every true minister of the Gospel has the Spirit, and the gifts of the Spirit, more or less, to qualify him for his work; he is separated, and called to it by him, and receives his spiritual light find knowledge from him; it is he that teaches him sound doctrine, and leads him into all truth, as it is in Jesus, and brings every necessary truth to his remembrance; and who succeeds his ministrations to the good of souls: but there are some who call themselves the ministers of the Gospel, who, though they may have some natural abilities, and a share of human learning, and a notional knowledge of things, yet have never received either grace or gifts from the Spirit; nor have they been ever called by him; nor are their ministrations according to that divine word which is inspired by him, nor attended with his demonstration and power; wherefore, though some professing to have the Spirit of Christ are to be believed, yet not everyone; and though the Spirit is not to be quenched in any, nor prophesying to be despised, yet care should be taken what is heard and received.

some persons are so obstinate and incredulous as not to believe anything that is declared, be the evidence what it will; as the Jews would not believe Christ and his apostles, though what they said agreed with Moses and the prophets, and was confirmed by miracles; and others are too credulous; at once receive every teacher, and embrace every upstart doctrine: this they should not do,

but try the spirits whether they are of God ;
not by human reason, especially as carnal and unsanctified; for though the doctrines of the Gospel are not contrary to true reason, they are above it, and not to be judged of by it, and are disapproved of and rejected by carnal reason; but by the word of God, which is the standard of all doctrine; and whatever agrees with that is to be received, and what does not should be rejected. And so to do is very commendable, as appears from the instance of the Beraeans, who on this account are said to be more noble than those of Thessalonica, (Acts 17:11) ; and from the commendation of the church at Ephesus, (Revelation 2:2) . And this is what every believer, every private Christian should do; to them it belongs to read and search the Scriptures, and prove all things, and judge for themselves of the truth of doctrine;

and to such a probation or trial of the spirits, spiritual light, knowledge, judgment, sense, experience, and divine guidance are necessary, which should be asked of God, and an increase thereof; and all such diligent searchers, and humble inquirers, are capable of making judgment of persons and doctrines, whether they are from the Spirit of God or not, for the Spirit of God never speaks contrary to his word: and the reason why such a trial should be made is,

because many false prophets are gone out into the world :
such who pretended either to a revelation of future things, and to foretell things to come; or rather to a gift of prophesying, or preaching in Christ's name, to be "prophets" and spiritual men, and ministers of the word, but were "false" ones; who either predicted what did not come to pass, or rather preached false doctrine, by corrupting the word, and handling it deceitfully, and so imposed upon and ruined the souls of others, as well as deceived their own: and there were not only one, or two, or a few of these, but "many", as our Lord had foretold, (Matthew 24:11Matthew 24:24) ; and which makes the reason the stronger for not believing every spirit, but trying them; and the rather, since they were not sent of God, hot called out by his churches, but were "gone out" of themselves; of their own heads, and without any mission from God or man:

and "into the world" too; they were in every part of it, and especially where there were any churches of Christ; into which they first crept in privily, and at unawares, but afterwards became public preachers of the word, and then separating from them, set up openly in the world for themselves.

Hereby know you the Spirit of God
This is a rule by which believers may know whether a man professing to have the Spirit of God, and to be called and sent by him, and whether the doctrine he preaches, is of him or not:

every spirit that confesseth that Jesus Christ is come in the flesh ,
is of God ;
or of the Spirit of God; that is, every doctrine which carries this truth in it; or every man that owns, and professes, and publishes this doctrine concerning Christ, is on the side of God and truth; and which contains several articles in it, respecting the person and office of Christ;

as that he existed before he came in the flesh, not in the human nature, or as man, or as an angel, but as the Son of God, as a divine person, being truly and properly God; so that this confession takes in his divine sonship, and proper deity, and also his true and real humanity; that the Messiah was incarnate, against the Jews, and was God and man in one person; and that he was really man, and not in appearance only, against the heretics of those times:

and it also includes his offices, as that Jesus of Nazareth was the Christ, the Messiah, which the Jews denied, and that he was the anointed prophet, priest, and King; and so is a confession or acknowledgment of all the doctrines of the Gospel, which came by him, as a prophet; and of his satisfaction, sacrifice, and intercession, as a priest; and of all his ordinances and commands as a King; and that he is the only Saviour and Redeemer of men.

Now, whoever owns and declares this system of truth, "is of God"; not that everyone that assents unto this, or preaches it, is born of God; a man may believe, and confess all this, as the devils themselves do, and yet be destitute of the grace of God; but the spirit, or doctrine, which contains these things in it, is certainly of God, or comes from him; or whoever brings these truths with him, and preaches them, he is, so far as he does so, on the side of God and truth, and to be regarded.

And every spirit that confesseth not The proper deity and sonship of Christ, his true and real humanity, and his Messiahship; or any of his offices, doctrines, and ordinances; or his satisfaction and righteousness; or that peace, pardon, justification, life, and salvation, are by him; all which are meant by what follows,

that Jesus Christ is come in the flesh : this clause is left out in the Ethiopic version, and that without hurting the sense, since it is easily supplied from the preceding verse; and the Alexandrian copy, and the Vulgate Latin version, only read "Jesus": and the latter reads the whole thus, "and every spirit that dissolves Jesus"; that separates the two natures, human and divine, in him, and makes two persons of them; or denies either of them, either that he is truly God, or really man, or denies him to be Jesus, the Saviour; who, as much as in him lies, destroys his person, office, and work, and makes void his obedience, sufferings, and death:

is not of God ; neither he nor his doctrine are of God; his doctrine cannot come from God, being contrary to the word of God; and he himself is neither born of God, nor on his side.

And this is that [spirit] of antichrist : who is against Christ, or opposes himself to him; as he who denies his sonship, his deity, his humanity, his offices, and his grace, manifestly does; every doctrine that is calculated against these truths is the spirit and doctrine of antichrist:

whereof you have heard that it should come, and even now already is it the world ; in the false teachers, the forerunners of antichrist; (See Gill on 1 John 2:18).

You are of God, little children
This, with what follows, is said for the comfort of the saints, and to deliver them from the fears of being drawn aside by the delusions of the false prophets, and antichrists; since they belonged to God, were his elect, and therefore could not be finally and totally seduced; they were the children of God by adopting grace, and could not become the servants of men; they were born of God, and so were kept by the power of God unto salvation, as all that are begotten unto a lively hope are; they were enlightened by the Spirit of God, and had a discerning of truth from error, and therefore could not be imposed upon:

and have overcome them ;
the false prophets, being in a good cause, fighting the good fight of faith, and having good weapons, particularly the sword of the Spirit, which is the word of God, and invincible arguments from thence; and also gracious assistance from the Spirit of God, who gives a mouth that none can shut, and wisdom that none can resist; as well as an inward experience of the truth, and power of Gospel doctrines: a testimony within themselves, which will stand the whole shock and opposition of the enemy: the Vulgate Latin version reads, "and have overcome him"; antichrist, whose spirit was then in the world; or the world itself, or Satan, the god of the world; and so the Ethiopic version reads, "and have overcome the evil one", as in (1 John 2:13 1 John 2:14) ; the reason of which victory, and which adds to the comfort and support of saints in their present warfare, is,

because greater is he that is in you, than he that is in the world ;
by "he that is in the world" is meant either the devil, the prince and god of the world, and who goes up and down in it, dwells in the hearts of the men of it, under whose influence they are, and in whom he works effectually; or antichrist, whose spirit was now in the world, and whose doctrine was propagated by the false teachers, in whom he began to appear;

but he that is in the saints, either God who dwells in them, and their in him, (1 John 4:15) ; is mightier than the man of sin, and his emissaries, to keep and preserve from all corruptions, and every false way; or Christ, who dwells in their hearts by faith, and is stronger than the strong man armed, and able to save and deliver out of his hands; or the Spirit of God; and so the Arabic version reads, "the Spirit that is in you"; who is in the saints, as a spirit of regeneration and sanctification, as a spirit of adoption, and the earnest of their inheritance; he is able to carry on the work of grace in them, and finish it, and will do it; and he, as a spirit of truth, is more powerful than the spirit of error; and when the enemy comes in like a flood, or pours in a flood of errors and heresies, he lifts up a standard against him, causes him to fly, and secures the saints from being carried away with it: compare with this the Septuagint version of (Psalms 124:1Psalms 124:2) , "if it had not been the Lord who was on our side"; which render it thus, "if the Lord had not been in us".

They are of the world
That is, the false prophets and teachers that were gone into the world, and had the spirit of antichrist in them; these were as they were when they came into the world, under the pollution, guilt, and dominion of sin, in a state of unregeneracy, carnality, and darkness; they properly belonged to it, and walked after the course of it, and were under the influence of the god of it, who led them into error; and were sensual, and indulged themselves in worldly lusts, and were seeking after worldly things; supposed that gain was godliness, and had men's persons in admiration because of advantage; their nature and disposition, their principles and practices, and their ends and views, were worldly; and were quite different from Christ and his apostles, (John 17:14John 17:16),

therefore speak they of the world ;
they speak the wisdom of the world, or that in which the world thinks wisdom lies, and cry up for true knowledge, and right principles; and this they do with the enticing words of man's wisdom, or in words which man's wisdom teaches; speaking great swelling words of vanity, which take with vain and carnal minds; and preach doctrines suited to their own taste, and the taste of others, as carnal and worldly men; such as the purity of human nature, in its first conception and birth, its freedom from any original corruption, and from any concern with the sin of Adam, only with actual sin of its own; and the power of it to do that which is good, keep the law of God, and obtain his favour; the non-necessity of any internal work of efficacious grace, a reformation of life and manners being thought sufficient to render a man acceptable to God, and prepare him for eternal happiness; the doctrine of justification and salvation by works; all which are pleasing to carnal men: hence it follows,

and the world hears them ;
the wicked of the world; worldly and unregenerate men attend on their ministry, approve of what they deliver, and receive it with pleasure, and believe it: this expresses both the quality of the hearers of false teachers, that they are that part of the world, the worse part of it, which lies in wickedness; and the quantity of them, the greater part of the world, as it was foretold by Christ, and his apostles, that they should deceive many, that many should follow their pernicious ways, and that they should draw many disciples after them; wherefore the numbers that attend such persons, as it need not be wondered at, since both preachers and hearers, and the doctrines preached and heard, are all alike, they are of the world, so it should not be stumbling to the people of God.