Matthew 5

Jesus delivers his inaugural sermon to his disciples upon a mountain, establishing the character of kingdom citizens and asserting that true righteousness exceeds external legalism by addressing the heart.

• Jesus ascends a mountain and sits to teach his disciples, positioning himself as a new Lawgiver
• The Beatitudes define the inward spiritual character of those belonging to the kingdom
• Disciples are called to exercise influence as salt and light in the world
• Jesus clarifies his mission is to fulfill rather than destroy the Law
• Jesus provides six antitheses demonstrating that the Law demands purity of the heart, not just outward obedience

• The mountain (ὄρος [G3735])
• Kingdom of heaven (βασιλεία [G932])
• The repetition of 'But I say unto you'
• The contrast between external act and internal heart-intent
• Father in heaven as the standard for perfection

This chapter establishes the core ethical standard for the New Covenant, moving the focus of morality from external Pharisaic compliance to the condition of the human heart before God.

Kingdom righteousness is not a superficial adherence to rules but a heart-level transformation that reflects the holiness of God the Father.

The discourse flows from the inner disposition of the believer (the Beatitudes) to their visible effect in society (Salt and Light), and finally to the radical heart-intentions required by the Law (the Antitheses).

• Theirs is the kingdom of heaven (v3, 10)
• They shall be comforted (v4)
• They shall inherit the earth (v5)
• They shall be filled (v6)
• They shall obtain mercy (v7)
• They shall see God (v8)
• They shall be called the children of God (v9)

• Rejoice and be exceeding glad (v12)
• Let your light shine (v16)
• Be reconciled to thy brother (v24)
• Agree with thine adversary (v25)
• Do not lust (v28)
• Pluck out the eye (v29)
• Cut off the hand (v30)
• Swear not at all (v34)
• Let your communication be Yea, yea (v37)
• Resist not evil (v39)
• Love your enemies (v44)
• Be perfect (v48)

• If salt loses its savour, it is good for nothing (v13)
• Danger of the judgment and hell fire (v22)
• The danger of being cast into hell for unmortified sin (v29, 30)
• Causeth her to commit adultery (v32)

• The sermon takes place in Galilee. The mention of 'mountain' (ὄρος [G3735]) likely evokes the imagery of Moses receiving the Law, presenting Jesus as the greater Lawgiver.

• Pharisaic teaching of the time emphasized outward observance of the letter of the Law. Jesus consistently elevates the requirement to the intent of the heart.

• This is the first of five major teaching discourses in the Gospel of Matthew. It functions as the constitution for the kingdom.

• The passage fulfills the expectation of a 'new heart' in the prophets (e.g., Ezekiel 36:26) and aligns the Law with the spirit of the Decalogue. Matthew Henry observes that 'the poor in spirit' are those who 'bring their minds to their condition' of humility before God, reflecting a core theological tension between human pride and divine grace.

• References to the Decalogue (Exodus 20) in the antitheses regarding murder, adultery, and oaths. Lev 19:18 is quoted regarding 'love thy neighbour'.
• The 'eye for an eye' (lex talionis) reference is found in Exodus 21:24.

• ὄχλος [G3793] (crowds/throng) emphasizes the large, eager audience. πτώχος [G4434] (poor) suggests one who is a beggar, needing God for everything. πραΰς [G4239] (meek) refers to power under control. δικαιοσύνη [G1343] (righteousness) refers to conformity to the will of God.

• The radical nature of Jesus' commands regarding 'resisting not evil' and 'loving enemies' directly challenged the cultural expectations of his day, which prioritized tribal loyalty and retaliation. Modern readers should note this is a radical call to imitate the Father, not a social program.

• There is significant historical debate regarding the antithesis on divorce (v32) and the 'exception clause' (saving for the cause of fornication). Various traditions debate whether this permits remarriage or merely separation. Similarly, the command 'resist not evil' (v39) is debated: some see it as an absolute rule for pacifism, others as a limit on personal vengeance in a judicial context.