erroneously assume, to

Goblet: 2:185 You shall not turn away from the knowledge and the wisdom of the prophets, unless you are of misguided senses and erroneously assume (believe) that you have been chosen in better knowledge and by the world to spread fallacious teachings, by which you however put yourselves in the unright and you will certainly be the ones without equitableness (unfair ones/irresponsible ones/inequitable ones).