What are the Characteristics of a NT Christian?

[Neo-Scholastic]

Metaphysical truths include things like the Principle of Non-Contradiction. If the PNC is not true then that would mean that reason itself is not effective. That is a self-defeating position.

There are instances where the PNC is not considered true: https://en.wikipedia.org/wiki/Law_of_noncontradiction

I know you meant well, MH. Linking to a long Wikipedia article is not very helpful to me. I'm not sure what you want be to tease out of it. To me the PnC is an absolute: something cannot be both simultaneously true and not true in all the same ways.