Parallel
Ecclesiastes 2:23
Brenton's English Septuagint · Berean Standard Bible
For all his days [are days] of sorrows, and vexation of spirit is his; in the night also his heart rests not. This is also vanity.
Indeed, all his days are filled with grief, and his task is sorrowful; even at night, his mind does not rest. This too is futile.