Sermon on the Mount: Oaths (Matthew 5:33–37)

“Again, you have heard that the ancients were told, ‘You shall not make false vows, but shall fulfill your vows to the Lord.’ But I say to you, take no oath at all, neither by heaven, for it is the throne of God, nor by the earth, for it is the footstool of His feet, nor by Jerusalem, for it is the city of the great King. Nor shall you take an oath by your head, for you cannot make a single hair white or black. But make sure your statement is, ‘Yes, yes’ or ‘No, no’; anything beyond these is of evil origin.”

Jesus teaches that His followers should be people of truth. In His day, oaths were often used to cover up dishonesty, but Christ calls us to a higher standard — one where our words alone are reliable. We should not need to “swear” by anything in heaven or on earth to prove our sincerity. Instead, our integrity should be so consistent that a simple “yes” or “no” is enough.

This challenges us to examine the way we use our words. Do we exaggerate? Do we make promises we do not keep? The call of Christ is to speak truthfully at all times, reflecting His character in a world filled with broken promises.

Why It Matters

Integrity builds trust. In a culture where lies and half-truths are common, Christians are called to stand out as people of honesty. When we live and speak truthfully, we bear witness to the God of truth. Our reliability in daily life — in work, relationships, and commitments — is a testimony of Christ’s transforming power. By letting our “yes” be yes and our “no” be no, we show that our lives are rooted in Him.

A Prayer for Today

Lord, help me to be a person of integrity. Guard my lips from dishonesty, exaggeration, and empty promises. Let my words be trustworthy and pleasing to You. May my speech reflect Your truth and bring glory to Your name. Amen.

Questions to Guide Your Reflection

  1. Do people know me as someone whose word can be trusted?
  2. In what areas of my life am I tempted to exaggerate, bend the truth, or make excuses?
  3. How can I practice being more intentional and truthful with my words this week?
  4. What does it mean for my “yes” to be yes and my “no” to be no in daily life?

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