My own view is that believers need to search the scriptures for themselves and to rely on the Holy Spirit to teach rather than man. However this in itself, if practiced in isolation, can be no less dangerous than blindly accepting the teaching of a church pastor or priest. It is easy for us to project our own prejudices and expectations into what we read in scripture and think that understanding came from the Holy Spirit, when it really came from our own imagination (or worse!).
In addition to the scriptures and the Spirit I see a third requirement – fellowship.
By this I don’t mean meeting with a group of virtual strangers in a designated building for an hour or two each week to sing hymns and listen to a talk. To me fellowship is regular interaction with (Spirit led) believers by any means possible, wherever possible.
This contact gives the opportunity for our personal understanding to be tested. The conclusions we have drawn through our interaction with both scripture and Spirit can be confirmed or corrected through relationship with spirit led believers as long as we genuinely desire the truth.