Bob DeWaay is pastor at Twin City Fellowship in Minnesota, and founder of Critical Issues Commentary. He is also the author of the superb book Redefining Christianity: Understanding the Purpose Driven Life Movement.
In May of 2008, Pastor DeWaay went (at Rick Warren’s invitation) to Saddleback Church. In his account of this visit, Pastor DeWaay nails the only two things that the church offers that people cannot obtain elsewhere:
The final point that I made concerned building a ministry on general revelation (what can be observed in nature as opposed to specific revelation, which is only found in Scripture). I said, “You cannot have a new reformation grounded in general revelation.” His response was, “But Jesus told us to do good works.” My response back was that Christians doing good works do not appear any different than people of other religions doing good works. I then said that the only two things the church has to offer that people cannot get anywhere else are salvation and sanctification. Neither of those can be gained through general revelation.
Pastor DeWaay’s full report of the visit concisely summarises the main problems with Purpose Drivenism. You can read it here: