'Sweetness' in the Bible

For understanding a proverb and its sweetness, Words of the wise and their acute sayings.

The wise in heart shall be called prudent: and the sweetness of the lips increaseth learning.

Pleasant sayings [are] a honeycomb, sweetness to the soul and healing to the bones.

Ointment and perfume rejoice the heart: so doth the sweetness of a man's friend by hearty counsel.