How do one discern if the Holy Spirit is actually guiding them?  How can two  people believe in two completely opposite beliefs, yet claim they were guided by the Holy Spirit? Non-contradiction shows one of the two persons beliefs are false, so who decides?  I think the Gospel teachings in the Bible are the clear concrete inspired word of God.  There can only be one truth and that is written in the Bible with the Holy Spirit to guide us with it's true meanings.