Walk in the Light:
John declares that the divine message, received from Christ and announced to his readers, is that “God is light” and is void of any semblance of darkness—a proposition applicable to Jesus as well (cf. Jn. 1:4-9; 8:12). If a person claims to enjoy “fellowship” with God while he continues to “walk” (live in an unrestrained fashion) within the domain of spiritual “darkness,” his life is a “lie,” and he is not practicing a life of truth (v. 6). On the other hand, if one “walks” (as a consistent mode of existence) in the light (of divine revelation via the Scriptures), then he shares a relationship with other Christians, and the cleansing effect of Jesus’ shed blood constantly works on his behalf, effecting pardon from sin (v. 7). If a person claims to live above sin (which some ancient heretics did), he is self-deceived and truth is not resident in him (v. 8). Some modern sectarians claim they have risen to live above sin; others allege they sin with the body but not with the soul—a theological impossibility.
Wayne Jackson, A New Testament Commentary
Pine Glen Road
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