Proverbs 14:13 (NKJV) — 13 Even in laughter the heart may sorrow, and the end of mirth may be grief.
Laughter and sorrow: This verse seems to bear a relationship with the previous one. While a merry heart is beneficial, the laughter of the carnal person ultimately does not end in good. It does not lift the heart. When the laughter is over, the heart is still sorrowful and heaviness still weighs down the soul.