Tim Keller On Gospel-Center Preaching

I have stated before, that Tim Keller is one of my favorite preachers and he is a model of ministry. For a long time, I personally struggled with how to preach to unbelievers and believers at the same time. I continually felt a responsiblity to preach the gospel to unbelivers who were present in the congregation, and yet, I felt a responsiblity to preach to the saints there too. Keller has been foundational in helping me think through this dilemna. His third article on preaching the gospel in a postmodern city has challenged me again.