To the authoritarian contention that those who possess the spirit are to judge all things but are not to be judged by others, Paul immediately raises a negative rhetorical question which confronts and critiques their assumed power by calling into question—and therefore making evident—their anthropological and theological assumptions (v. 16): For who has known the mind of the Lord so as to instruct him? Quoting from Isa. 40:13, Paul employs the rich themes of radical negation to cut to the very heart