Matthew 5:33–37

Order of Service

• Call to Worship — James 1:16–18
• Hymn — For the Beauty of the Earth (#116)
• Prayer of Invocation
• Westminster Shorter Catechism — Q&A 105 (Fifth Petition)
• Hymn — Marvelous Grace of Our Loving Lord (#465)
• Pastoral Prayer
• Sermon
• Hymn — 'Tis So Sweet to Trust in Jesus (#679)
• Benediction

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Sermon Title: Truth, Oaths, and the Disciple's Word

Scripture: Matthew 5:33–37

I. Fallen Man's Truth

A. The Pharisees and scribes developed artificial oath systems to avoid accountability

1. Rabbinic tradition distinguished binding from non-binding oaths (e.g., swearing by the temple vs. toward it)
2. These systems perverted the purpose of oaths — replacing honest reliance on God with loopholes for deception

B. We create our own modern equivalents: white lies, crossed fingers, misdirection

1. All deception ultimately stems from self-preservation
2. The root lie is the serpent's: you can be like God — you can sustain yourself apart from him
3. When a person no longer trusts God to preserve them, they will preserve themselves through deceit

C. The ninth commandment — you shall not bear false witness — is at its core a question of trust: do you trust God alone to preserve you?

1. Gossip, flattery, hyperbole, and misdirection all serve self-interest and self-exaltation
2. Truth forces honesty about who we really are; lies sustain the illusion of the self we want to project

II. God's Truth

A. Jesus dismantles the rabbinic loophole system by asserting God's total sovereignty over all creation

1. Heaven is God's throne; earth is his footstool; Jerusalem is the city of the great king; even the hairs of your head belong to him — Matthew 5:34–36
2. There is no crevice in creation where God's name is absent; his signature is on every square inch

B. Because all creation bears God's name, truth must follow us everywhere

1. Science, mathematics, research, and all inquiry involve handling God's creation — it must be done honestly
2. To use God's creation to deceive is to take his name in vain and soil his reputation

C. We are stewards of God's household, entrusted to handle his creation with care and integrity

1. A steward handles another's property with greater scrupulousness than their own
2. Deception and manipulation are incompatible with faithful stewardship of what belongs to God

III. The Church's Truth

A. Clarifying a historic misinterpretation: Jesus is not prohibiting all oaths

1. God himself swears by his own name — Hebrews 6
2. The covenant formula between Yahweh and Israel was an oath structure
3. Paul uses the phrase as God is my witness as an oath idiom
4. The target is the unbiblical use of oaths to deceive, not oaths as such

B. The command let your yes be yes and your no be no calls disciples to a character that renders artificial oaths unnecessary — Matthew 5:37

1. Untrustworthy people must hype their language to garner trust; the disciple's consistent truthfulness should make that unnecessary
2. The early church was remarkable to both Jewish and Greco-Roman observers for being people of their word — in contrast to the sophists who prized eloquence over truth

C. In a fallen world, being a person of truth means bearing a cross

1. Jesus himself was terse before his accusers; his truthfulness led him to the cross
2. Disciples who are people of truth can expect suffering — being truthful in a dog-eat-dog world requires dying to self
3. The motive is not winning arguments but winning souls to the truth of Jesus Christ — Galatians 2:20

D. The call: rest in the sovereign God who preserves you, die to self, and be people of truth