When we become Christians we don’t just turn over a new leaf, we’re spiritually raised with Christ and his resurrection power comes into our lives. And so, what does such an empowered life look like?
We’re called to be holy, but this is a difficult term to get ahold of. In our modern culture, both the word “sin” and the word “holiness” are almost never used anymore except ironically. But we need to take it seriously. 
So let’s ask 1) what is holiness? 2) how does it grow and develop in us? and 3) why is it possible to be holy?
This sermon was preached by Dr. Timothy Keller at Redeemer Presbyterian Church on May 18, 2014. Series: Following Jesus. Scripture: 1 Peter 1:13-16.
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Released on 13 Apr 2026