This is the message which we have heard from him and announce to you, that God is light, and in him is no darkness at all.
      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, Galatians 3:13; Galatians 3:14.