The Need for Prophetic Verification and the Lens of the TNK/NT

It has been easy enough for some to recognize the need for a sign or verification before believing stories about modern day prophets, but for some reason, that doesn't tend to carry over in application to prophets who have already traditionally been accepted (i.e., the "N" of the TNK).

In both cases, these people are prophets who come after Moses, and we are expected to test them (and testing doesn't just mean to "see if they're 'pro-Torah'").

Certain ideas have been so deeply ingrained (or otherwise accepted without much thought) that we might not even readily recognize when such a prophet is teaching against the Torah. If we learned the Torah while presuming these prophets to be true, we likely accounted for their doctrine in our understanding of the Torah, so how exactly would we be truly testing them at that point? 

A big deviation of the Torah from the rest of the TNK is the emphasis on the Tent of Appointment, but that has not been easy to recognize for many due to the emphasis on these traditionally accepted and otherwise untested prophecies. The framework that many who believe in the Torah have operated out of is the framework of the TNK, which has resulted in unintentionally "mentally rewriting" the Torah to fit that.