The apostle, having declared the truth and dignity of the author of the gospel, brings a message or report from him, from which a just conclusion is to be drawn for the consideration and conviction of the professors of religion, or professed entertainers of this glorious gospel.

I.Here is the message or report that the apostle avers to come from the Lord Jesus: This then is the message which we have heard of him (Jo1 1:5), of his Son Jesus Christ. As he was the immediate sender of the apostles, so he is the principal person spoken of in the preceding context, and the next antecedent also to whom the pronoun him can relate. The apostles and apostolical ministers are the messengers of the Lord Jesus; it is their honour, the chief they pretend to, to bring his mind and messages to the world and to the churches. This is the wisdom and present dispensation of the Lord Jesus, to send his messages to us by persons like ourselves. He that put on human nature will honour earthen vessels. It was the ambition of the apostles to be found faithful, and faithfully to deliver the errands and messages they had received. What was communicated to them they were solicitous to impart: This then is the message which we have heard of him, and declare unto you. A message from the Word of life, from the eternal Word, we should gladly receive: and the present one is this (relating to the nature of God whom we are to serve, and with whom we should covet all indulged communion) - That God is light, and in him is no darkness at all, Jo1 1:5. This report asserts the excellency of the divine nature. He is all that beauty and perfection that can be represented to us by light. He is a self-active uncompounded spirituality, purity, wisdom, holiness, and glory. And then the absoluteness and fulness of that excellency and perfection. There is no defect or imperfection, no mixture of any thing alien or contrary to absolute excellency, no mutability nor capacity of any decay in him: In him is no darkness at all, Jo1 1:5. Or this report may more immediately relate to what is usually called the moral perfection of the divine nature, what we are to imitate, or what is more directly to influence us in our gospel work. And so it will comprehend the holiness of God, the absolute purity of his nature and will, his penetrative knowledge (particularly of hearts), his jealousy and injustice, which burn a a most bright and vehement flame. It is meet that to this dark world the great God should be represented as pure and perfect light. It is the Lord Jesus that best of all opens to us the name and nature of the unsearchable God: The only-begotten, who is in the bosom of the Father, the same hath declared him. It is the prerogative of the Christian revelation to bring us the most noble, the most august and agreeable account of the blessed God, such as is most suitable to the light of reason and what is demonstrable thereby, most suitable to the magnificence of his works round about us, and to the nature and office of him that is the supreme administrator, governor, and judge of the world. What more (relating to and comprehensive of all such perfection) could be included in one word than in this, God is light, and in him is no darkness at all? Then,

II.There is a just conclusion to be drawn from this message and report, and that for the consideration and conviction of professors of religion, or professed entertainers of this gospel. This conclusion issues into two branches: - 1. For the conviction of such professors as have no true fellowship with God: If we say we have fellowship with him, and walk in darkness, we lie, and do not the truth. It is known that to walk, in scripture account, is to order and frame the course and actions of the moral life, that is, of the life so far as it is capable of subjection to the divine law. To walk in darkness is to live and act according to such ignorance, error, and erroneous practice, as are contrary to the fundamental dictates of our holy religion. Now there may be those who may pretend to great attainments and enjoyments in religion; they may profess to have communion with God; and yet their lives may be irreligious, immoral, and impure. To such the apostle would not fear to give the lie: They lie, and do not the truth. They belie God; for he holds no heavenly fellowship or intercourse with unholy souls. What communion hath light with darkness? They belie themselves, or lie concerning themselves; for they have no such communications from God nor accesses to him. There is no truth in their profession nor in their practice, or their practice gives their profession and pretences the lie, and demonstrates the folly and falsehood of them. 2. For the conviction and consequent satisfaction of those that are near to God: But, if we walk in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin. As the blessed God is the eternal boundless light, and the Mediator is, from him, the light of the world, so the Christian institution is the great luminary that appears in our sphere, and shines here below. A conformity to this in spirit and practice demonstrates fellowship or communion with God. Those that so walk show that they know God, that they have received of the Spirit of God, and that the divine impress or image is stamped upon their souls. Then we have fellowship one with another, they with us and we with them, and both with God, in his blessed or beatific communications to us. And this is one of those beatific communications to us - that his Son's blood or death is applied or imputed to us: The blood of Jesus Christ his Son cleanseth us from all sin. The eternal life, the eternal Son, hath put on flesh and blood, and so became Jesus Christ. Jesus Christ hath shed his blood for us, or died to wash us from our sins in his own blood. His blood applied to us discharges us from the guilt of all sin, both original and actual, inherent and committed: and so far we stand righteous in his sight; and not only so, but his blood procures for us those sacred influences by which sin is to be subdued more and more, till it is quite abolished, Gal 3:13, Gal 3:14.

But if we walk in the light - If, having received the principle of holiness from him, we live a holy and righteous life, deriving continual light, power, and life from him, then we have fellowship one with another; that is, we have communion with God, and God condescends to hold communion with us. This appears to be the intention of the apostle; and so he was understood by some versions and MSS., which, instead of μετ' αλληλων, with each other, have μετ' αυτον, with him. Those who are deeply experienced in Divine things converse with God, and God with them. What John says is no figure; God and a holy heart are in continual correspondence.

The blood of Jesus Christ - The meritorious efficacy of his passion and death has purged our consciences from dead works, and cleanseth us, καθαριζει ἡμας, continues to cleanse us, i.e., to keep clean what it has made clean, (for it requires the same merit and energy to preserve holiness in the soul of man, as to produce it), or, as several MSS. and some versions read, καθαριει and καθαρισει, will cleanse; speaking of those who are already justified, and are expecting full redemption in his blood.

And being cleansed from all sin is what every believer should look for, what he has a right to expect, and what he must have in this life, in order to be prepared to meet his God. Christ is not a partial Savior, he saves to the uttermost, and he cleanses from All sin.

But if we walk in the light,.... Are persons enlightened by the Spirit of God, so as to have a true sight and sense of sin, to know Christ, and the way of salvation by him; and are children of the light, and are going on and increasing in spiritual light and knowledge; walk on in Christ, the light, by faith, and in the light and truth of the Gospel, and as becomes it, and as children of light; and as such who are called out of darkness into marvellous light:

as he is in the light; according to the light which he has given, who is light itself, is in it, and dwells in it. This "as" denotes not equality, but likeness: when this is the case, then it is a clear point, that

we have fellowship one with another; not with the saints, with the apostles, and other Christians, but with God: "we have mutual communion", as the Arabic version renders it; God with us, and we with him. Some copies read, "with him", as in Jo1 1:6; and such a reading the sense requires; and agreeably to this the Ethiopic version renders it, "and we are partakers among ourselves with him"; that is, we all jointly and mutually appear to be like him, and partake of his nature, and have communion with him; and not only so, but with his Son Jesus Christ, as appears from our having a share in the cleansing efficacy of his blood:

and the blood of Jesus Christ, his Son, cleanseth us from all sin: there is a pollution on human nature, which is original, natural, universal, and internal, and is such that nothing can remove but the blood of Christ; not ceremonial ablutions and sacrifices, nor moral duties, nor evangelical performances, or submission to Gospel ordinances, and particularly baptism, which is not the putting away the faith of the flesh; nor even the graces of the Spirit, no, not faith, no otherwise than as it has to do with this blood; for this cleansing is not to be understood of sanctification, for that more properly belongs to the Spirit of God, and besides, does not cleanse from all sin; for notwithstanding this, sin is in the saints: but either of the atonement of sin, by the sacrifice of Christ, and so of a complete justification from it by his blood, which is put for both his active and passive obedience, the one being finished in the other; or rather of the pardon of sin, procured by the blood of Christ, and the application of that blood to the conscience, which purges it from dead works, and which has a continued virtue in it for that purpose. Christ's blood, being applied by the Spirit of God, has been always cleansing from sin; it had this virtue in it, and was of this use, even before it was actually shed, to the Old Testament saints; whence Christ is said to be the Lamb slain from the foundation of the world; and it has the same efficacy now as when first shed, and will have to the end of the world; and being sprinkled upon the conscience, by the Spirit of God, it takes away the sins of believers, and cleanses from them, as fast as the corruption of nature rises, or sins appear; and removes them out of their sight, and speaks peace to their souls; and which is owing, as to the dignity of Christ's person and the value of his sacrifice, so to his continual intercession, advocacy, and mediation; and which reaches to all sin, original and actual, secret and open sins; sins of heart, thought, lip, and life; sins of omission and commission, greater or lesser sins, committed against light and knowledge, grace and mercy, law and Gospel, all but the sin against the Holy Ghost; and in this Christ was the antitype of the scape goat, of which the Jews say (g), that

"it atoned for all the transgressions of the law, whether small or great, sins of presumption, or of ignorance, known, or not known, which were against an affirmative or negative command, which deserved cutting off (by the hand of God), or death by the sanhedrim.''

The Arabic and Ethiopic versions render it, "from all our sins"; and this must be ascribed to the greatness of his person, as the Son of God; wherefore the emphasis lies on these words, "his Son": the Son of God, who is equal with God, and is truly and properly God: as it must be the blood of man that must, according to the law, be shed, to atone for and expiate sin, and cleanse from it, and that of an innocent man, who is holy, harmless, and without sin; so it must not be the blood of a mere man, though ever so holy, but the blood of one that is God as well as man; see Act 20:28. The divine nature of the Son of God, being in union with the human nature, put virtue into his blood to produce such an effect, which still continues, and will, as long as there is any occlusion for it.

(g) Misn. Shebuot, c. 1. sect. 6.

Compare Eph 5:8, Eph 5:11-14. "WE WALK"; "God is (essentially in His very nature as 'the light,' Jo1 1:5) in the light." WALKING in the light, the element in which God Himself is, constitutes the test of fellowship with Him. Christ, like us, walked in the light (Jo1 2:6). ALFORD notices, Walking in the light as He is in the light, is no mere imitation of God, but an identity in the essential element of our daily walk with the essential element of God's eternal being.

we have fellowship one with another--and of course with God (to be understood from Jo1 1:6). Without having fellowship with God there can be no true and Christian fellowship one with another (compare Jo1 1:3).

and--as the result of "walking in the light, as He is in the light."

the blood of Jesus . . . cleanseth us from all sin--daily contracted through the sinful weakness of the flesh, and the power of Satan and the world. He is speaking not of justification through His blood once for all, but of the present sanctification ("cleanseth" is present tense) which the believer, walking in the light and having fellowship with God and the saints, enjoys as His privilege. Compare Joh 13:10, Greek, "He that has been bathed, needeth not save to wash his feet, but is clean every whit." Compare Jo1 1:9, "cleanse us from all unrighteousness," a further step besides "forgiving us our sins." Christ's blood is the cleansing mean, whereby gradually, being already justified and in fellowship with God, we become clean from all sin which would mar our fellowship with God. Faith applies the cleansing, purifying blood. Some oldest manuscripts omit "Christ"; others retain it.