31:T4f2,

You can’t talk publicly about Christianity unless at some point you get down to say, “Well, what is it?”

There’s great consensus that 1 Corinthians was written just 20 years after the death of Jesus Christ. So when Paul says he’s summarizing the message the Corinthians heard and believed before this, he’s talking about something that happened a handful of years after Jesus’ death. If you want to get down to the irreducible core of what Christianity is about, here it is in this passage.

This is the gospel. The gospel is about 1) Jesus, 2) sin and substitution, 3) history and resurrection, and 4) astonishing, transforming grace.

This sermon was preached by Dr. Timothy Keller at Redeemer Presbyterian Church on November 10, 2013. Series: A Public Faith. Scripture: 1 Corinthians 15:1-11.

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32:T4f2,

If we’re going to have a truly open society, we have to learn how to be public about our deepest faith beliefs, and yet to do so in a way that’s respectful to others and promotes peace.

So how do you talk about God and God’s existence? One way to talk about this with more reflection is not to ask, “Does God exist?” but to ask, “How do you know whether God exists?”

I don’t think there’s any more brilliant answer to the question, “How can we know whether God exists?” than in Romans 1. Paul actually gives four answers, all at once. He says, 1) we can know God, 2) we do know God, 3) we don’t know God, and 4) we can truly know God.

This sermon was preached by Dr. Timothy Keller at Redeemer Presbyterian Church on October 20, 2013. Series: A Public Faith. Scripture: Romans 1:16-21.

What Is the Gospel?