New Living Translation
Anyone who continues to live in him will not sin. But anyone who keeps on sinning does not know him or understand who he is.

American Standard Version
Whosoever abideth in him sinneth not: whosoever sinneth hath not seen him, neither knoweth him.

Berean Study Bible
No one who remains in Him keeps on sinning. No one who continues to sin has seen Him or known Him.

Douay-Rheims Bible
Whosoever abideth in him, sinneth not; and whosoever sinneth, hath not seen him, nor known him.

English Revised Version
Whosoever abideth in him sinneth not: whosoever sinneth hath not seen him, neither knoweth him.

King James Bible
Whosoever abideth in him sinneth not: whosoever sinneth hath not seen him, neither known him.

World English Bible
Whoever remains in him doesn't sin. Whoever sins hasn't seen him, neither knows him.

Young's Literal Translation
every one who is remaining in him doth not sin; every one who is sinning, hath not seen him, nor known him.

1 John 3:6 Additional Translations ...