" How Can I Know God?" by Tim Keller
Bono talking about the difference between grace and karma
"The Centrality of the Gospel" by Tim Keller
"The Uniqueness of Christ in an Age of Relativism" by Dick Keyes
"How can you say that Christianity is the only true religion?" by Tim Keller and Charles Garland
Kevin DeYoung on how to love theology without being a jerk: "The Crust and the Core Redux"