No human preachers can serve as perfect metraton for God
No human will always take a preacher's advice in the context meant by the preacher.
For there is not only human error but also error in human ego and therefore the need to hide personal agenda.
A lost sea scroll parable left out of the Bible said something along the lines of 'Let not the fraility of brick and mortar reside as only host to your better judgement as the true temple of god is thyself.'
The bible reads; 'if but all else be true to thy self'
How many times has a preacher stated a word of god yet something in you took offense as that it was most certainly not the word of god?
I trust that something in me
more than ANYTHING outside of me.