King James Version (KJV) Authorized Version 1611
Read Full Chapter (James 4)

James 4:20 KJV

"Therefore to him that knoweth to do good, and doeth it not, to him it is sin."
James Chapter 4, Verse 20

James 4:20 in Context (Verses 17–17 KJV)

17
Therefore to him that knoweth to do good, and doeth it not, to him it is sin.