I think most of us have problems with that..
I wonder what makes you decide what should be dismissed or not.
Ah, one of the bigger questions.
I've had to chase that widdershins round the village pond a good few times, and through a few art galleries as well.
If one instantly and fully sits under the authority of any text declaring itself as of divine origin and thus superior to human logic and wisdom, then one is irrevocably caught by the first one encountered, whichever and whatever it is.
Not good, (but obviously "right" to anyone who has been. Faith, placed as the very first step, appears to be a disaster in terms of being able to discriminate)
If one takes the position that one is able to bring critical assessment and judgement to a text asserting super-human levels of truth, so as to correctly choose between rival claims, then an awful lot hangs on the criteria and methodology being employed at the level of the human mind.
"It is right because it is the one held to be true by my family/local society" remains popular world wide, and that often at a subconscious level,
"This matches most how I think and feel..." A little more sophisticated, perhaps, but laoded with assumptions about the validity and correctness of one's current thinking. If it's that good, what's the point of a holy text at all.
Revealing here might be how the individual handles parts of the text which are not so intuitively appealing.
It could follow from an act of judgement that a particular text is right in what it asserts, that it was time to accept the consequences of that claim and sit under it, even for the passages not liked. The "not liking" etc. would then be taken to be markers of where one's human mind was in error and needed realignment to match the text's perspective.
So coming under the text's authority as a act of surrender of the right to judge.
That first (human) judgement that this was correct behaviour had better have been right, though, because a lock-out for doubt and critical questioning has been arrived at.
It's not simple. Even usually reliable rules such as "internal inconsistency is proof of error" are not perfect in the context of a claim to higher than human knowledge, wisdom and logic.