Again, I write a new commandment to you, which is true in him and in you; because the darkness is passing away, and the true light already shines.
and the true light now shineth; either the Gospel, which is a light, and a true and substantial one, in distinction from the dim light of nature, or the shadowy law of Moses; and which now, under the present dispensation, shines out in a most glorious manner, as the sun in its full strength; and so the Ethiopic version renders it, "the light of truth"; the word of truth, the Gospel of our salvation: or Jesus Christ, who is so called, John 1:9; in distinction from typical lights, as the "Urim" on the high priest's breastplate, the candlestick in the tabernacle and temple, and the pillar of fire by night, which guided the Israelites through the wilderness; and in opposition to all false lights, to the Scribes and Pharisees, to false Christs and false prophets, which are so many "ignes fatui"; but Christ is the sun of righteousness that is risen in our "horizon", and the true light which shines out in a most illustrious manner: or the light of grace is here intended, that light which the Spirit of God illuminates with in conversion; in which a man sees sin in its true colours, and has a spiritual and saving sight of Christ, of pardon, peace, life, righteousness, and salvation by him; which is no other than the light of faith, by which an enlightened person sees the Son, looks to him, and has an evidence of the unseen glories of another world. Now this is a true light, things are seen by the believer in a right light, both his own sins, and the person, blood, and righteousness of Christ; this is a shining one, which cannot but be observed by himself, and shines more and more to the perfect day; and it now shines as it did not before, in a state of nature, and continues to shine, and ever will: this light will never be put out, and is the cause of brotherly love, being truly in the saints, and of the continuance of it; before this light shines, men live in malice, but when it comes and shines, as they walk in light, they walk in love.