Parallel
Ecclesiastes 6:12
Brenton's English Septuagint · Berean Standard Bible
What advantage has a man? for who knows [what is] good for a man in his life, [during] the number of the life of the days of his vanity? and he has spent them as a shadow; for who shall tell a man what shall be after him under the sun?
For who knows what is good for a man during the few days in which he passes through his fleeting life like a shadow? Who can tell a man what will come after him under the sun?