Is Grace the Defining Factor of Christianity?

Summary

The sermon's main theme is that grace is the defining characteristic of Christianity, setting it apart from other religions. C.S. Lewis's insight, referencing the concept of grace as unearned favor from God through Jesus, is key. The practical takeaway is that Christians should live out this grace in their relationships, particularly in marriage, by extending forgiveness without limit, as modeled by God's forgiveness of our sins.