Topic: New Testament Scripture: Matthew 5:21–5:48
The sermon on the mount is basically a discipleship class. It's about how you live in the Kingdom of Heaven.
The emphasis of the sermon is constantly moving us away from rules and towards relationship. Kingdom righteousness is seen in purity of motive, rather than outward observance.
It is this distinction that marks the difference between the teaching of Jesus and the teaching of the Pharisees. And so Jesus gives us example after example of what this looks like in the life of a believer.