John 7:18
He that speaketh of himself seeketh his own glory: but he that seeketh the glory of him that sent him, the same is true, and no unrighteousness is in him — Jesus distinguishes between teaching for self-glory and teaching for God's glory. The one who speaks 'of himself' (aph' heautou) seeks self-promotion; Jesus seeks the Father's glory and thus is 'true' (alēthinos, genuine, authentic) and without unrighteousness (adikia, injustice). This establishes the moral criterion for truth: true teaching is other-directed, seeking not the teacher's glory but God's. By this standard, Jesus is trustworthy; those who oppose him seek their own honor and status.