It is difficult to respond to so much made up stuff, based on belief posing as knowledge.  We most certainly do grow in knowledge and hopefully 'knowing' expands wisdom...what happens is that superstition and myth are dismissed by subduing ignorance. No one is saying What the early Christian would have known with information provided them...that did not happen and was not the case.  They were ignorant of what we know today as fact.  But some 'somehow' have persisted in ignorance;  such as thinking 'the intellect is part of the soul'.  Repeatedly neurology has dismissed that fake stuff providing proof that the intellect resides solely in the brain.