Cross reference
Psalms 144:3
3 LORD, what is man, that thou takest knowledge of him! or the son of man, that thou makest account of him!
Psalms 8:4
4 What is man, that thou art mindful of him? and the son of man, that thou visitest him?
Hebrews 2:6
6 But one in a certain place testified, saying, What is man, that thou art mindful of him? or the son of man that thou visitest him?
Job 7:17
17 What is man, that thou shouldest magnify him? and that thou shouldest set thine heart upon him?
Job 15:14
14 What is man, that he should be clean? and he which is born of a woman, that he should be righteous?
Psalms 146:3-4
3 Put not your trust in princes, nor in the son of man, in whom there is no help.
4 His breath goeth forth, he returneth to his earth; in that very day his thoughts perish.