Proverbs 16:21-22 (KJV)
The wise in heart shall be called prudent: and the sweetness of the lips increaseth learning.
Understanding is a wellspring of life unto him that hath it: but the instruction of fools is folly.
Sweetness of thier words (lips)
Prudent
Increased in learning
Understanding
All descriptions of the LIFE of a Believer and the things that GOD brings to pass into a child of HIS who spends time in fellowship with HIM and studies HIS Word.
WHat did God say about the UNSAVED?
He called them FOOLS and thier words of wisdom (instruction) "folly".
WHY ? Because only GOD is the author of WISDOM, not the unsaved man without GOD. WISDOM and KNOWLEDGE and Understanding all come from a relationship with GOD.