Passage
Whosoeuer abideth in him, sinneth not: whosoeuer sinneth, hath not seene him, neither hath knowen him.
Whosoeuer abideth in him, sinneth not: whosoeuer sinneth, hath not seene him, neither hath knowen him.
1 John 3:4 Whosoeuer committeth sinne, transgresseth also the Law: for sinne is the transgression of the Lawe.
1 John 3:5 And ye knowe that hee was made manifest, that he might take away our sinnes, and in him is no sinne.
1 John 3:6 Whosoeuer abideth in him, sinneth not: whosoeuer sinneth, hath not seene him, neither hath knowen him.
1 John 3:7 Litle children, let no man deceiue you: he that doeth righteousnes, is righteous, as hee is righteous.
1 John 3:8 He that comitteth sinne, is of the deuil: for the deuill sinneth from the beginning: for this purpose was made manifest that Sonne of God, that he might loose the workes of the deuil.
The verse centers on "whosoeuer", "abideth", "sinneth", "hath", "seene", and "neither". It is saying that the verse draws attention to "whosoeuer" and "abideth", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 5's "And ye knowe that hee was made..." into verse 7's "Litle children let no man deceiue you...", so "whosoeuer" and "abideth" belong inside that flow. In 1 John context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "whosoeuer" and "abideth" with trust shaped by these words, not by a vague optimism outside the passage.