Proverbs 14:13

"Even in laughter the heart is sorrowful; And the end of mirth is heaviness."

"Like many other Proverbs in our English version, this one cannot be taken as universally true. The first clause is often rendered, and perhaps should be, "Even in laughter the heart may sorrowful."[13] "There are two kinds of laughter and mirth. There is an innocent and proper mirth; and there is an guilty and sinful mirth."[14] There is also sometimes a heavy and disconsolate heart that disguises its sorrow by a show of joy and laughter.