Corollary of Saint Paul

Or is Saint Paul's statement (About Ourselves) a corollary of Job?  This is another ingenious encapsulation of the human condition; a variation on the theme of humanity.

"If I justify myself, mine own mouth shall condemn me: if I say, I am perfect, it shall prove me perverse." (Job 9:20)

Illustration from Wikimedia Commons, Blaubeuren Chorgestühl Hiob, 1493.