Cross reference
Ecclesiastes 4:7
7 And I have turned, and I see a vain thing under the sun:
Ecclesiastes 4:1
1 And I have turned, and I see all the oppressions that are done under the sun, and lo, the tear of the oppressed, and they have no comforter; and at the hand of their oppressors `is' power, and they have no comforter.
Psalms 78:33
33 And He consumeth in vanity their days, And their years in trouble.
Zechariah 1:6
6 Only, My words, and My statutes, That I commanded My servants the prophets, Have they not overtaken your fathers, And they turn back and say: As Jehovah of Hosts designed to do to us, According to our ways, and according to our doings, So He hath done to us?'