1 John 2:7-11

Verse 7

Brethren, I write no new commandment - There seems a contradiction between this and the next verse. But the apostle appears to speak, not so much of any difference in the essence of the precept itself, as in reference to the degrees of light and grace belonging to the Mosaic and Christian dispensations. It was ever the command of God that men should receive his light, walk by that light, and love him and one another. But this commandment was renewed by Christ with much latitude and spirituality of meaning; and also with much additional light to see its extent, and grace to observe it. It may therefore be called the Old commandment, which was from the beginning; and also a New commandment revealed afresh and illustrated by Christ, with the important addition to the meaning of Thou shalt love thy neighbor as thyself, ye shall love the brethren so as to lay down your lives for each other. See the note on Joh 13:34.

Instead of αδελφοι, brethren, ABC, thirteen others, with both the Syriac, Erpen's Arabic, Coptic, Sahidic, Armenian, Slavonic, and Vulgate, with several of the fathers, have αγαπητοι, beloved. This is without doubt the true reading.
Verse 8

Which thing is true in him and in you - It is true that Christ loved the world so well as to lay down his life for it; and it was true in them, in all his faithful followers at that time, who were ready to lay down their lives for the testimony of Jesus. There is a saying in Synopsis Sohar, p. 94, n. 51, that may cast some light on this passage: That way in which the just have walked, although it be Old, yet may be said to be New in the love of the righteous. The love that the righteous bear to God and to each other is a renewal of the commandment.

The darkness is past - The total thick darkness of the heathen world, and the comparative darkness of the Mosaic dispensation, are now passing away; and the pure and superior light of Christianity is now diffusing its beams everywhere. He does not say that the darkness was all gone by, but παραγεται, it is passing away; he does not say that the fullness of the light had appeared, but ηδη φαινει, it is now shining and will shine more and more to the perfect day; for the darkness passes away in proportion as the light shines and increases.
Verse 9

He that saith he is in the light - He that professes to be a convert to Christianity, even in the lowest degree; and hateth his brother - not only does not love him, but wills and does him evil, as the Jews did the Gentiles; is in darkness - has received no saving knowledge of the truth; and, whatever he may pretend, is in heathen ignorance, or even worse than heathen ignorance, to the present time, notwithstanding the clear shining of the light of the Gospel.
Verse 10

He that loveth his brother - That is, his neighbor, his fellow creature, whether Jew or Gentile, so as to bear him continual good will, and to be ready to do him every kind office; abideth in the light - not only gives proof that he has received Christ Jesus the Lord, but that he walks in him, that he retains the grace of his justification, and grows therein.

And there is none occasion of stumbling in him - Και σκανδαλον εν αυτῳ ουκ εστιν· And there is no stumbling block in him; he neither gives nor receives offense: love prevents him from giving any to his neighbor; and love prevents him from receiving any from his neighbor, because it leads him to put the best construction on every thing. Besides, as he walks in the light, he sees the stumbling blocks that are in the way, and avoids them; every part of his path being illuminated. Many fall into sin because they do not see the snares that are in the way; and they do not see the snares because they either have not received, or do not abide in, the light.
Verse 11

But he that hateth his brother is in darkness - He is still in his heathen or unconverted state; and walketh in darkness, his conduct being a proof of that state; and knoweth not whither he goeth - having no proper knowledge of God or eternal things; and cannot tell whether he is going to heaven or hell, because that darkness has blinded his eyes - darkened his whole soul, mind, and heart.
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