from TGC by Don Carson
Throughout my spiritual pilgrimage, two sources have largely shaped, and continue to shape, my own prayer life: the Scriptures and more mature Christians.
The less authoritative of these two has been the advice, wisdom, and example of senior saints. I confess I am not a very good student in the school of prayer. Still, devoting [space] to their advice and values may be worthwhile before I turn to the more important and more authoritative of the two sources that have taught me to pray.
Among the lessons more mature Christians have taught me, then, are these.