How to select which supernatural to believe?

[Angrboda]

It seems there is a straightforward argument for prophethood being the only way one can possibly know God's intention (assuming he exists)

(1) for every prophet PR, the prophet PR is either lying or unknowingly misguided
(2) there is no other kind of claimed divine revelations in reality other than those of PR's.

(3) From 1 and 2, there is no divine revelation whatsoever.

(4) God is supposedly benevolent and wants His creatures to know him.

If 4 is true:

(5) From 3 and 4, God as so defined, doesn't exist.

If 4 is false:

(6) God doesn't want his creation to know Him or worship him. And so from a practical point view, any rational individual should act as though He doesn't exist.

If the above argument is true, and that God exists, then there is at least one PR who is genuinely a prophet.

There are plenty of ways to spin from there.

If there are many prophets worshipping many gods (as now), and one of those gods exists, by your argument, there is at least one genuine prophecy.

The problem is there doesn't seem to be any way to narrow down from the set of all prophets to only those that are genuine (e.g. prophesy for the right god).

So, ultimately, even if your argument is valid, it's of no practical use in identifying gods and/or prophets.