By sinneth, he meaneth the same thing as afterwards by committeth sin: see 1 John 3:8,9. Seeing and knowing intend inward union, acquaintance, and converse; such as abode in him implies: see 1 Thessalonians 5:37 3 John 1:11.
Related Commentaries of 1 John 3:6
1 John 3:6
6 Whosoever abideth in him sinneth not: whosoever sinneth hath not seen him, neither known him.