Proverbs 14:13

13Even in laughter the heart may ache,
and athe end of joy may be bgrief.

Ecclesiastes 7:6

6 cFor as the crackling of dthorns under a pot,
so is the laughter of the fools;
this also is vanity.
The Hebrew term hebel can refer to a “vapor” or “mere breath” (see note on 1:2)

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