King James Version (KJV)
Even in laughter the heart is sorrowful; and the end of that mirth is heaviness.
Modern English
Even in laughter the heart may ache, and the end of joy may be grief.
Hebrew
גַּם בִּ֭שְׂחוֹק יִכְאַב לֵ֑ב וְאַחֲרִיתָ֥הּ שִׂ֝מְחָ֗ה תוּגָֽה׃
gam bishḥvoq yikʾab leb vʾaḥariytah shimḥah tvgah