Seeing the crowds, Jesus goes up on the mountain, sits down, and his disciples come to him; there he begins to teach. He pronounces the Beatitudes: blessed are 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' sake, for theirs is the kingdom of heaven and they will be comforted, inherit the earth, be satisfied, receive mercy, see God and be called children of God. He adds that they are blessed when people insult and persecute them because of him, and that they should rejoice because their reward in heaven is great.
Jesus tells his disciples that they are the salt of the earth and the light of the world, and that a city set on a hill cannot be hidden; they must let their light shine so that others see their good works and glorify the Father. He declares that he did not come to abolish the Law or the Prophets but to fulfill them, and that his disciples' righteousness must exceed that of the scribes and Pharisees.
He then sets six times what was said to the ancients against what he says. It is not enough not to murder: one must be reconciled and not nurse anger or insults. It is not enough not to commit adultery: a lustful look is already a sin of the heart. On divorce, only sexual immorality justifies it. Oaths are unnecessary; yes should be yes and no should be no. Evil is not to be answered with revenge but with generosity: turning the other cheek, giving the cloak, going the second mile. Finally he commands loving enemies and praying for persecutors, imitating the Father, who makes his sun rise on the evil and the good, and concludes: be perfect as your heavenly Father is perfect.