The NKJV, a KJV so substantially changed that it could be copyrighted for profit.
Ill stick with the KJV.
In Exodus 20:13 and Deuteronomy 5:17 the Ten Commandments in the Old KJV says killing is a sin.
The Old KJV is wrong on the commandment.
This and other errors were corrected in the NKJV to say Murder as the original Hebrew texts and all Greek texts say.
God never called killing people murder, otherwise He would not the tell them go murder people of Canaan in battle after telling them it is a sin. God will never tells us to break a commandment He told us was sin. Sadly the Old King James Version is responsible for many misguided Christians on that commandment.
To me that is a very glaring error that led many Christians down a false path of arguing against the justified death penalties and justified wars.
That and other reasons are why I use either the NASB, or the NKJV
This is my stance on it, and I will not get into a long drawn out discussion on this thread about it, but now you know why I use the NKJV.
God bless and have a great day.