Lux Domini

Guide

What is the Sermon on the Mount?

The most famous sermon ever preached: what Jesus taught in Matthew 5-7, why it matters, and how to read it today.

The Sermon on the Mount occupies three chapters of Matthew and contains some of the most quoted words in human history. The Beatitudes, the Lord's Prayer, the Golden Rule, and "turn the other cheek" all come from this single discourse. It is the longest continuous block of Jesus's teaching in the Gospels.

This guide walks through the major sections of the Sermon, explains what Jesus was doing, and addresses the perennial question: is this teaching meant to be taken literally?

The Beatitudes: who is blessed

Jesus opens with nine statements about who is blessed. The poor in spirit. Those who mourn. The meek. Those who hunger and thirst for righteousness. The merciful, the pure in heart, the peacemakers, and those persecuted for righteousness. Each Beatitude inverts worldly values.

The Beatitudes are not commands. They are descriptions of the kind of people who belong to the kingdom of God. They paint a portrait of character that is radically different from the power-seeking, self-protecting instincts of ordinary life.

You have heard it said: the six antitheses

Jesus follows the Beatitudes with six teachings that deepen the Mosaic law. You have heard it said, do not murder; I say, do not hate. You have heard, do not commit adultery; I say, do not lust. Each antithesis moves from external compliance to internal transformation.

This is not the abolition of the law. It is the radicalisation of the law. Jesus is not relaxing standards. He is pushing them inward to the heart, where they become more demanding, not less.

Prayer, fasting, and treasure

The central section addresses three core practices: giving, praying, and fasting. Jesus warns against doing them for public display. The Lord's Prayer appears here as a model of simple, direct, reverent speech to God.

The passage about treasure follows naturally. Where your treasure is, there will your heart be also. The whole section asks the same question: are you performing for an audience of people or living before the audience of God?

The wise and foolish builders

Jesus closes the Sermon with the parable of two builders. The wise man builds on rock; the foolish man builds on sand. When the storm comes, only the rock-built house stands. The rock is not mere hearing but doing what Jesus has said.

This ending makes the Sermon practical rather than theoretical. Jesus does not offer a philosophy. He offers a way of life. The question is not whether the listener agrees but whether the listener obeys.

Key passages

Matthew 5:3

"Blessed are the poor in spirit: for theirs is the kingdom of heaven."

Blessed are the poor in spirit: for theirs is the kingdom of heaven.

Matthew 6:9

"After this manner therefore pray ye: Our Father which art in heaven, Hallowed be thy name."

After this manner therefore pray ye: Our Father which art in heaven.

Matthew 7:24

"Therefore whosoever heareth these sayings of mine, and doeth them, I will liken him unto a wise man, which built his house upon a rock:"

Whosoever heareth these sayings of mine, and doeth them, I will liken him unto a wise man.