也许有人知道北美有所谓的“宣教导向的教会”（the missional church），或“宣教运动”（the missional movement）。这是一种思维上非常根本的转变，把教会论的重要性放在宣教学之下。教会存在的唯一目的是要完成所谓的“神的差派”（missio Dei）。因此，教会所作的一切，都应该以宣教为目的，要和文化对话，好让人归信基督。当然，如果教会所作的“一切”都必须以宣教为目标，那么，逻辑上来说，这当然会影响到公众的崇拜。当教会在主日聚集在一起举行公众崇拜时，发生的是什么事，是针对谁？宣教运动的人说，崇拜应该以传福音为目的，崇拜服事不只是要建造圣徒，也要向不信的人说话。我写了一篇论文来批评这个观点，我选择Tim Keller 的一篇论文“传福音的崇拜”（Evangelistic Worship），来与之对话。我从释经学的角度论证崇拜不是以传福音为导向，而是圣约的一部分。它是三一真神与祂圣约子民的集会。不信的人可以在场，而神可以利用这个崇拜服事来使他们归正（林前14：23-25），但不信的人是在圣约之外的，在崇拜当中不应该提到他们（不是崇拜的重点）。为护教所作的福音性的聚会，圣经研读，和其他的集会是很有价值的，但崇拜不是一个传福音的聚会。可以在这里读这篇论文：A Critique of Tim Keller's "Evangelistic Worship"
Some of you may be aware that there is this thing called "the missional church" or "the missional movement" or just "missional." It is a fundamental shift in thinking in which ecclesiology is subordinated to missiology. The church exists exclusively as a means for the accomplishment of the so-called missio Dei. Therefore, everything the church does should be missional and should engage the culture for the sake of winning people to Christ. Of course, if "everything" the church does ought to be missional, then this will logically impact corporate worship. When the church gathers for corporate worship on the Lord's Day, what is occurring in that meeting and who is being addressed? The missional movement says that worship ought to be evangelistic and that the service should not only edify the saints but also address unbelievers. I have written a paper in which I critique this view. I have chosen to interact with a paper by Tim Keller titled "Evangelistic Worship." I argue exegetically that worship is not evangelistic but covenantal. It is a meeting of the triune God with his covenant people. Unbelievers may be present and God may even use the service to convert them (1 Cor 14:23-25), but unbelievers as outsiders to the covenant should not be addressed in worship. Evangelistic meetings, Bible studies, and other meetings for the purpose of apologetic engagement are valuable, but worship is not an evangelistic meeting. Read the paper here: A Critique of Tim Keller's "Evangelistic Worship"