Christianity was originally never understood as a set of teachings that one took on. Christianity was a power that took you up. It completely turned you inside out, transformed you from the inside.

The classic example is the conversion of Paul. Paul was an abusive, violent zealot. He went from someone who was deeply unhappy and restless to someone who was utterly unflappable, absolutely content. How? A radical, deep conversion.

We all need to know how to live deeply converted lives. And though Paul’s conversion is dramatic, it shows three things involved in every conversion: 1) an untame God, 2) a stubborn fact, and 3) a radical relationship.

This sermon was preached by Dr. Timothy Keller at Redeemer Presbyterian Church on November 23, 2003. Series: The Necessity of Belief. Scripture: Acts 9:1-19.

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Conversion is a radical change of life. And in its early days, Christianity grew through conversions. It spread so rapidly that it changed a hostile society completely.

What does it mean to become a Christian? By looking at the conversions in Acts, we can see what Christianity really is.

In this passage, the conversion of an Ethiopian, we learn three things: 1) who converts, 2) the context of conversion, and 3) the key instrument conversion uses.

This sermon was preached by Dr. Timothy Keller at Redeemer Presbyterian Church on November 16, 2003. Series: The Necessity of Belief. Scripture: Acts 8:26-40.

Today's podcast is brought to you by Gospel in Life, the site for all sermons, books, study guides and resources from Timothy Keller and Redeemer Presbyterian Church. If you've enjoyed listening to this podcast and would like to support the ongoing efforts of this ministry, you can do so by visiting https://gospelinlife.com/give and making a one-time or recurring donation.

Christianity was born into a culture that was every bit as resistant and unsympathetic to its claims as ours is. So how did its message come into the lives of people and actually change them?

In Acts, we have more case studies of conversion than anywhere else in the Bible. And in this passage, Luke chooses three to show us both how incredibly different and yet how incredibly similar Christian conversions can be.

What does it mean to be a Christian, and how do you become a Christian? 1) Lydia is a case of the gospel for the religious, 2) the slave girl is a case of the gospel for the oppressed, and 3) the jailer is a case of the gospel for the secular.

This sermon was preached by Dr. Timothy Keller at Redeemer Presbyterian Church on November 9, 2003. Series: The Necessity of Belief. Scripture: Acts 16:13-34.

Today's podcast is brought to you by Gospel in Life, the site for all sermons, books, study guides and resources from Timothy Keller and Redeemer Presbyterian Church. If you've enjoyed listening to this podcast and would like to support the ongoing efforts of this ministry, you can do so by visiting https://gospelinlife.com/give and making a one-time or recurring donation.