Well, you don't seem to know much of the epoch ... but it is Ok, you don't have to know everything, right.In order to demonstrate that they actually thought that.
Because we can read what they wrote. They assume the Bible is true by default.
As i said to you before, most people would not have cared about the ramblings of random itinerant preachers. There were other mystery cults around in the Ancient Near East, Christianity was just the Jewish version. The fact that most people did not convert should tell you that most people did not take what they claimed seriously.
What's a "real refutation?"
That was an epoch of a lot of interest in new philosophies and religions ... but you can get some info about it from that forumer who said in post#5 of this topic that she was "happy that [her] research into the life and times of the period under roman rule is accurate. There is evidence, there is fact, nothing to solve" ... her words. Good luck.