We can pray for wisdom and discernment but we are still fallible.
It is the rejection of the early creeds that marks cults..
So what are these "Scripturally based structures of authority" that the "solo" scripturists are supposedly rejecting?
The authority of those who rule in the Church is rejected by placing the decisions of an ecumenical council of ministers on the same level as the words of any individual.
Does any ecumenical council of ministers have this "authority" the author keeps referring to? If not, then how do you know which ones are ok to reject?
That's a great observation.