While at it explain your man's/Frijoles' words i.e. "I never DOUBTED the existence of historical Jesus."<quoted text>]
Frijole posted the definition of delusion for you:
a persistent false psychotic belief regarding the self or persons or objects outside the self that is maintained despite indisputable evidence to the contrary; also : the abnormal state marked by such beliefs
So back to the central question....do you have any evidence to support your delusion??
Having explained it, integrate it into your previous assignment.