As I compare the KJV and the NASB my simple Hebrew tools tell me the original text uses the same words for both translations, yet there seems to be a different emphasis.
(Proverbs 19:27 NAS77) Cease listening, my son, to discipline, And you will stray from the words of knowledge.The NASB seems to be saying we will stray if we stop listening to the truth. The KJV seems to say that we will stray if we keep listening to lies. Notice the phrases in each translation that are not in the actual Hebrew, that are assumed. The point is that what we listen to will effect where we end up. It would be wonderful if we could make this another type of twofer. How strong would we be spiritually if we developed the discipline to avoid the destructive and focus on the truth.
So? One of the glories of inspired scripture is that you can often arrive at the same key points even with a different emphasis in the translation. God speaks to our hearts, if we are listening.