I believe that the Bible was originally given as a guide book for us here on Earth. Then, good ol' Man got his hands into it! :)
For myself, wondering about the OT, I equate it to the astrological signs -- don't know if it is right or makes sense to anyone else.
We are in the Age of Aquarius which is all about teamwork -- working together to build this world; for the previous 2,000 years, we were in Pisces which is all about parent and child, Father and Son, teacher and student (if I can do this, so, too, can you); prior to that, we were in Aries -- because it is a Fire sign, I am thinking that the people of the time used threats and violence to hold their power over others and so the OT was written in that aspect of fire and brimstone.