'Sorrow' in the Bible

For in much [human] wisdom there is much displeasure and exasperation; increasing knowledge increases sorrow.

Then I saw that [even secular] wisdom [that brings sorrow] is better than [the pleasures of] folly and self-indulgence as light excels darkness.

For all his days his work is painful and sorrowful; even at night his mind does not rest. This too is vanity (worthless).

All of his life he also eats in darkness [cheerlessly, without sweetness and light], with great frustration, sickness, and anger.

Sorrow is better than laughter,For when a face is sad (deep in thought) the heart may be happy [because it is growing in wisdom].

Therefore, remove sorrow and anger from your heart and put away pain from your body, for childhood and the prime of life are fleeting.