1:5-10 A message from the Lord Jesus, the Word of life, the eternal Word, we should all gladly receive. The great God should be represented to this dark world, as pure and perfect light. As this is the nature of God, his doctrines and precepts must be such. And as his perfect happiness cannot be separated from his perfect holiness, so our happiness will be in proportion to our being made holy. To walk in darkness, is to live and act against religion. God holds no heavenly fellowship or intercourse with unholy souls. There is no truth in their profession; their practice shows its folly and falsehood. The eternal Life, the eternal Son, put on flesh and blood, and died to wash us from our sins in his own blood, and procures for us the sacred influences by which sin is to be subdued more and more, till it is quite done away. While the necessity of a holy walk is insisted upon, as the effect and evidence of the knowledge of God in Christ Jesus, the opposite error of self-righteous pride is guarded against with equal care. All who walk near to God, in holiness and righteousness, are sensible that their best days and duties are mixed with sin. God has given testimony to the sinfulness of the world, by providing a sufficient, effectual Sacrifice for sin, needed in all ages; and the sinfulness of believers themselves is shown, by requiring them continually to confess their sins, and to apply by faith to the blood of that Sacrifice. Let us plead guilty before God, be humble, and willing to know the worst of our case. Let us honestly confess all our sins in their full extent, relying wholly on his mercy and truth through the righteousness of Christ, for a free and full forgiveness, and our deliverance from the power and practice of sin.

5. First division of the body of the Epistle (compare [2637]Introduction).

declare—Greek, "announce"; report in turn; a different Greek word from 1Jo 1:3. As the Son announced the message heard from the Father as His apostle, so the Son's apostles announce what they have heard from the Son. John nowhere uses the term "Gospel"; but the witness or testimony, the word, the truth, and here the message.

God is light—What light is in the natural world, that God, the source of even material light, is in the spiritual, the fountain of wisdom, purity, beauty, joy, and glory. As all material life and growth depends on light, so all spiritual life and growth depends on God. As God here, so Christ, in 1Jo 2:8, is called "the true light."

no darkness at all—strong negation; Greek, "No, not even one speck of darkness"; no ignorance, error, untruthfulness, sin, or death. John heard this from Christ, not only in express words, but in His acted words, namely, His is whole manifestation in the flesh as "the brightness of the Father's glory." Christ Himself was the embodiment of "the message," representing fully in all His sayings, doings, and sufferings, Him who is LIGHT.