The conclusion that "what John is doing in 1 John 1:6-10 is speaking of a single person - the Christian - who can live in two different, contradictory ways: in the light or in the darkness" is not correct. Thus, I can say, "if we drive sober we are fine with the law, but if we drive under the influence of alcohol we can be arrested". Obviously, it is not speaking about a single person who can do both: some of us, fortunately, NEVER drive under the influence. Those who are born again NEVER walk in darkness ( 1 John 3:6-9).
I don't think you're understanding my point about John lumping himself in with his readers. John is very clear that he is speaking to born-again believers, not only by the repeated use of the "we" pronoun, but also by the following:
1 John 1:1-4
1 That which was from the beginning, which we have heard, which we have seen with our eyes, which we looked upon and have touched with our hands, concerning the word of life—
Who is the "we" here? The still-lost, spiritually-unregenerate person? Obviously not. "We" in light of what John says in this verse refers to those who had interacted directly with Jesus (the Word of life), hearing, seeing and even touching him.
2 the life was made manifest, and we have seen it, and testify to it and proclaim to you the eternal life, which was with the Father and was made manifest to us—
Here, John hearkens to the beginning of his Gospel (
John 1:1-4), speaking of Christ as "the Life" who was with God at the moment of Creation, made manifest to John and many others. But who is the "you" to whom John refers in this verse? Is it reasonable to think that John was writing to lost people? Or is John addressing the Early Church? Well, there
were unsaved people around the Early Church, perhaps even within it, the "false brethren" Paul spoke of, or the "tares" of whom Jesus spoke (
2 Corinthians 11:26; Galatians 2:4; Matthew 13:38). It may well be that John has them in view here since he clearly distinguishes the "we" and "us" of those who've interacted with Jesus from the "you" who are those to whom John is relating his first-hand experience of Jesus.
3 that which we have seen and heard we proclaim also to you, so that you too may have fellowship with us; and indeed our fellowship is with the Father and with his Son Jesus Christ.
Here, too, John reinforces that he is speaking to a group of people - "you" - that is distinct from the group who have "fellowship with the Father and Jesus Christ" - "we" and "us."
1 John 1:5-7
5 This is the message we have heard from him and proclaim to you, that God is light, and in him is no darkness at all.
This is the last time John uses "you" in the chapter. From this point on, there are only the pronouns "we" and "us," which marks very plainly that what John writes from this point on applies
to himself in the same way it does to his readers. Beyond this verse, John no longer has two different groups - "us" and "you" - in view.
6 If we say we have fellowship with him while we walk in darkness, we lie and do not practice the truth.
What John doesn't say here is that, if he is walking in darkness, he has lost his salvation, or that his walking in darkness demonstrates he was never saved. No, John only refers to the loss of
fellowship with God in the verse above, not
relationship. What's the difference? Consider the parable of the Prodigal Son (
Luke 15:11-32). All the while the son was in a far country wasting his inheritance in profligate living
he was still his father's son, described as such all throughout the parable. The biological/familial relationship between father and son could not be dissolved by distance or bad behavior. But so long as he stayed in the far country, eating pig's food, the son could not enjoy with his father any fellowship, any direct, personal, positive interaction. Only when the son returned home did his father embrace and kiss him, giving him new robes and ring, and throwing a homecoming party (i.e. fellowship).
So, then, fellowship is not synonymous with relationship. This is borne out also in many relationships I have with other people that are devoid of fellowship with them. I have a relationship with my dentist but we are by no means enjoying fellowship with one another. The same goes for my doctor, and the chef at my favorite restaurant, and the cashier at the grocery store at which I regularly shop, and so on. Anyway,
fellowship with God, not one's
relationship to Him, is what the apostle John says is sacrificed when he, or any other child of God, "walks in darkness." This means, though, that a genuine child of God can (and does, as the record of Scripture plainly illustrates) sin.
7 But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin.
What does John write only a couple of verses later about being cleansed of sin by the blood of Jesus? Under what condition does this cleansing happen? It occurs, he wrote,
when one has sinned and confessed that sin to God (
vs. 9). In the verse above, then, John is saying that "walking in the light as God is in the light"
entails sin and its confession and cleansing! As born-again believers are careful to confess their sin when it occurs and are thus cleansed of it, John explained, they enjoy fellowship with one another and walk in the light, enjoying fellowship with God, also.
8 If we say we have no sin, we deceive ourselves, and the truth is not in us.
Seeming to anticipate that some might misconstrue his words and suggest from them that the Christian person is sinlessly-perfect, John flatly stated here that those who make such an assertion are both deceived and empty of truth. It is crystal clear that by "we" and "us" John meant born-again people since his pronouns included
himself, a born-again apostle of Jesus Christ and prominent leader of the Early Church. And John didn't write "had no sin" in
verse 8 but used the
present-tense verb "
have no sin" and "decieve" rather than "deceived," implying that he could not say
in the moment in which he was writing the verse that he had so sin (and neither could anyone else).
9 If we confess our sins, he is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.
10 If we say we have not sinned, we make him a liar, and his word is not in us.
John continues to indicate in these verses that sin is a present and ongoing state of affairs ("confess" rather than "have confessed," "forgive" rather than "has forgiven," etc.) for
himself and thus, other believers, so that confession of, and cleansing from, sin is a necessary part of "walking in the light."
Thus, I can say, "if we drive sober we are fine with the law, but if we drive under the influence of alcohol we can be arrested". Obviously, it is not speaking about a single person who can do both: some of us, fortunately, NEVER drive under the influence. Those who are born again NEVER walk in darkness ( 1 John 3:6-9).
??? But there
are individuals who drive sober at various times and drive drunk at others. This is common knowledge, in fact. And because there are so many who do, in a wide set of regions across the world, drunk driving is illegal.
The apostle John is not speaking, though, in an indiscriminate way to
every human being. He is addressing, in
1 John 1:6-10, particularly those
who are like himself: born again children of God. To them, John wrote that they can have fellowship with God and with each other as they "walk in the light" which they do, in part, by confessing their sin as it crops up in their lives. This is the obvious and natural sense of John's words, as I've explained above. And this straightforward reading of his words comports, as I've pointed out before, exactly with the
many places in the NT where saved people are described as having sinned:
1 Corinthians 3, 5, 6, 11, Galatians 2:11-14; 3:3, Revelation 2-3, Romans 6:1-3, Ephesians 5:1-13, etc.