To me, the bible makes total sense. Not that I'm a fundamentalist, but I think of the bible meaning what it says. That Jesus [and others] desended down infers below my feet. Couple that with the scriptural references that hell is at the earths center lead me to believe that [a biblical] hell is at the earths core. I know, it's crazy, but that is what the scriptures say, and the technology to prove or disprove this theory does not yet exist.
An example of the soul/spirit/body differential, in Genesis can easily be explained. God created the world in seven days. Obviously the days are different [longer] where he resides, heaven, [even if he is everywhere]. Adam was the 1st man made with a soul, but the nephilim had already been on the earth and were [more than likely] the humans [with spirit, but not a soul] that the fallen angels had relations with, [as recorded in Genesis].
On the trinity comments, it should be noted that scripture states that Jesus Christ is God, That the Father is God, That the Holy Ghost is God without using the word trinity, it is non the less scripturally inferred. One example is that Jesus orders us to baptise on the name of the Father, the Son & the Holy Ghost. One name for the 3 separate beings. Wait for the helper, not wait for help...the Holy Ghost is the Helper.
Of course this is just my own thought process as one must ultimately make a 'leap of faith' when you actually accept Jesus Christ as your Lord and Savior. When you know that Jesus would have gone through it all, just for you, even if you were the only person on earth, well, then you've made the leap too!
respectfully,
DC