Hebrews 5:4

4Andκαὶnotοὐχupon himselfἑαυτῷanyoneτιςtakesλαμβάνειtheτὴνhonorτιμήν,but ratherἀλλὰbeing calledκαλούμενοςbyὑπὸτοῦGodθεοῦ,just asκαθώσπερalsoκαὶAaronἈαρών.

And no one takes upon himself the honor, but is being called by God, just as Aaron also.