From himself (ap eautou). This kind of teacher is self-taught, pushes his own ideas, presses his own claims for position and glory, "blows his own horn" as we say. Jesus is the other type of teacher, seeks the glory of the one who sent him, whose herald and ambassador he is. The same (outo). "This one." Unrighteousness (adikia). Old word from adiko (a privative and dikh). Here in contrast with "true" (alhqh). See 2 Thessalonians 2:10 ; 1 Corinthians 13:6 for the deceit of unrighteousness in contrast with truth as here.