A.W. Tozer playlist: A.W. Tozer Sermon - The Path to Power and Usefulness (Part 2 of 5) If you have read or heard classic "deeper life" Christian authors andor preachers, i.e. Watchman Nee, Andrew Murray, A.B. Simpson, Leonard Ravenhill, then you will quite likely find this sermon by A.W. Tozer very edifying. May you be blessed.