1:3 What benefit
which
2:20 So I began to despair
for which I worked so hard
2:11 Yet when I reflected on everything I had accomplished
and on all the effort that I had expended to accomplish it,
I concluded:
like chasing the wind!
There is nothing gained
2:19 Who knows if he will be a wise man or a fool?
Yet
for which I worked so wisely
This also is futile!
2:21 For a man may do his work with wisdom, knowledge, and skill;
however, he must hand over
to someone else who did not work for it.
This also is futile, and an awful injustice!
5:16 This is another misfortune:
Just as he came, so will he go.
What did he gain from toiling for the wind?