What is baptism? What does baptism mean? Is it simply an individual's declaration that they now belong to Jesus? Is it a sign and seal of the new covenant, just as God intended circumcision to be a sign and seal of the old? And what does all of this have to do with church membership? Is church membership for everyone? Only baptized believers? Baptized believers and their children?

If God the Holy Spirit left your church this weekend, what would happen next?

Where do elders come from? Is there a way to raise them up without trying to "reverse engineer" a man-made process? And once a church has elders, how can they stay unified? What does "unity" among elders even look like? Must they agree on every single thing?

In the last of a three-part interview,* Mark Dever interviews Tim Keller about his book-writing ministry, how he attempts to confront a secular audience with the gospel, and more.

Mark Dever interviews Tim Keller about his pastoral legacy, what a typical Sunday morning looks like for him, his dichotomy-refuting "third way-ism," and much more.

Mark Dever interviews Tim Keller about his conversion, what led him to New York City, why the cultural gap between generations has exponentially grown in recent decades, and much more.

Church Membership in Theory and Practice with Ligon Duncan, originally posted Jan 9, 2015.Join the 9Marks community:GET THE APP: http://9marks.link/appTWITTER: https://www.twitter.com/9MarksFACEBOOK: https://www.facebook.com/9MarksINSTAGRAM: https://www.instragram.com/9MarksBOOKSTORE: https://www.9marks.org/bookstore

Mark Dever interviews four men ministering across four continents: South America, Europe, Asia, and Africa.

Is expositional preaching the only kind of faithful preaching? Are personal illustrations useful or unacceptable? How can preachers encourage obedience without veering toward moralism? In this wide-ranging interview, Garrett Kell talks with Mark Dever on the art and practice of preaching.

Mark Dever interviews CBMW President Owen Strachan on Chuck Colson, Carl F. H. Henry, and the state of the complementarian debate.