Most conditionalism - even if it does seem to support the idea that the bible must be consistent - doesn't do exegesis as much as kneejerk theology - and then claim that it's just taking God at His word (and I think most of them really believe they are). But too often it's filtered through that natural understanding Peter and Jude talked about, and grounded in the wickedness they see in themselves. I try to tread lightly here because we all have these tendencies in us by virtue of being in Adam. We all (naturally) want to justify ourselves and when we accept that we are sinners, we want to correct the situation on our own. But the one who knows the Lord and has been changed deeply and radically can't go back to that.
Wanted to comment on this, but didn't have time earlier. Something important you bring up here is how we must never filter the word of God through our limited understandings and prejudices. I was taught very early on and have always sought to do this, to only seek exactly what the Lord is saying in scripture, regardless where this leads, to avoid like the plague any notion scripture reads in a way that is philosophically agreeable, to flee subjectivity, and to flee writings of cults and cultish figures with private interpretations, differing from generations of fundamental understandings in the Reformed Christian community.
On difficult issues, seek further clarification from the whole Bible, look for first mention, etc. Though I do hope to bring common sense to scripture understanding, for instance, if the Lord says we have eternal life, present tense, this means we have eternal life, and eternal life cannot be temporary life. God is a God of reason, and, of absolute truth, means what He says, as well as God is not the author of confusion. It is people who are confused, having the endless grand debates. Ironically, precept upon precept, a simpler, crystal clarity begins to emerge, pure reason and consistency throughout scripture. But you must approach scripture with a completely open mind, seeking the mind of God, and only His mind, His mind higher than ours, His thinking often not ours.
There have been a few things in scripture I have a hard time with, and this is where I believe faith means you trust the Lord knows best. Thus saith the Lord, and that settles it. Also, if one is having a problem, read what great men of God, of sterling reputations, had to say down the generations in honored commentaries: you'd be very surprised how great fundamentalist scholars agree on much, great seminarians who can help clear the air. And this, as opposed to expecting to find truth in web forums, which are rife with cults, trolls and tares. Using this approach, you begin to see the harmony and consistency in the entire body of the word of God, see the immutable and holy God of scripture, from Genesis to Revelation. It's clear that simply God's holiness is not really grasped by many, from narcissistic comments one sees, where man's control freak role is elevated and injected into God's work. Anyway, subjectivity leads to false exegesis, which leads to contradictions and disharmony, the confusion symptomatic of a lack of understanding. The net results are the convoluted discourses you see in forums and the like. So, much agree with your thoughts on this.
The Bible even warns of the folly of subjectivity, the filters you refer to, in no uncertain terms:
Proverbs 3
5 Trust in the LORD with all thine heart; and lean not unto thine own understanding.
6 In all thy ways acknowledge him, and he shall direct thy paths.
7 Be not wise in thine own eyes: fear the LORD, and depart from evil.
