This short article on the biblical support, logical necessity, appropriateness and inevitability of hell for those who reject God and Christ is an extremely helpful read. It will benefit Christians and non-Christians alike. For an extended version, see the appropriate section of Keller’s The Reason For God.
(HT: Tullian Tchividjian)
By the way, Keller has a forthcoming book (Oct 2008) called The Prodigal God, which is available now for pre-order (HT: JT). It is an extended reflection on Christ’s well known parable of the profligate son and his legalistic older brother (Luke 15:11-32). Keller’s unique sermon on this passage can be freely downloaded. I plan to post more about this book in the weeks and months to come; Keller’s sermon on this Luke 15 passage has been revolutionary for me.
Update: I’ve now posted a brief interview with Tim Keller about his forthcoming book The Prodigal God.