Zusatztext Praise for Preaching “Superb . . . we should be grateful to Keller for his wisdom, scholarship, and humility.” -The Gospel Coalition   “If you want to see ‘between the lines’ and just ‘below the surface’ of our cultural moment and societal ethos . . . Which is to say, if you are any kind of Christian leader, teacher, writer, blogger, public thinker, politician, artist, media person, campus minister, youth leader, parent, Christian educator, spiritual director, or anyone with influence . . . then this is going to be exceptionally helpful for you.” -Byron Borger Praise for  Prayer "...Keller provides a contextually rich guide and companion to prayer." - Kirkus "...if you follow Keller into the arsenal, you will be powerfully equipped to overcome the world/flesh/Devil and see your prayers for kingdom advance answered by.