Those are partial explanations; let's not assume that Paul lays out for us anything near a complete, comprehensive and systematic view of how to understand God and the World He has made and set us within.
Thanks for that, I think we are somewhat in agreeance if not entirely.
Everything outside the Bible is of secondary import - that is to say commentary, theology, christian philosophy etc. I am not saying those things may not be helpful to an individual - but none of us can force our favorite philosopher or biblical commentator unto the church - we can only offer their cogitations as perhaps being helpful to some people. I have books outside the Bible that I personally find helpful at times. Sometimes I quote from those in the forums, but I cannot demand others accept those quotes as finally authoritative.
The Gospel writers, and the Apostles were uniquely guided in their recollections and selections and sequencing of what they recorded, and what they explain - because the Holy Spirit has in sovereignty supervised the composition of the Bible. Modern scholarship notwithstanding (upon which rests the burden of proof if 20 centuries later it wants to suggest otherwise) this has been the historic position of the main churches that the Holy Spirit supervised the writing of the Bible.
Most times people posting in the forums are debating a teaching of a particular theologian and arguing about
that rather than about the Bible. They frequently endeavour to use the Bible to settle the matter. I think that is methodologically wrong if they decide the matter in advance and don't allow for the possibility themselves to be corrected by the Word and Spirit.
The only thing I believe I can do personally is allow for other christians to have their interpretation provided they are not forcing it on me. I don't go looking for arguments, or debates on contentious issues.
Yes there are systematic theologies out there - several of them. Worldview books - again several. There really is not too much disagreement on what the main worldviews today are.
But as far as Christian
Theologies (rather than natural philosophies) and Evangelical Protestantism are concerned they proceed on a certain set of axioms, they proceed as I understand it from an assumption of
Revelation given. They proceed on the assumption that this can be systematised properly and they argue that it is something revealed
in the Old or New Testaments that is decisive in matters of dispute, and that a theologian beyond his interpretations is to give final authority to the Word and the Spirit.
A Minister or teacher of God's Word, can be approached for help because they have a wider knowledge of God's Word written, so they would be able to point someone with a question to further scriptures that give light on the matter.