I. The Name of the Lord is Holy

From The Catechism of the Catholic Church

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Oaths which misuse God’s name, though without the intention of blasphemy, show
lack of respect for the Lord. the second commandment also forbids magical use
of the divine name.

PART THREE: LIFE IN CHRIST

SECTION TWO THE TEN COMMANDMENTS
- CHAPTER ONE YOU SHALL LOVE THE LORD YOUR GOD WITH ALL YOUR HEART, AND WITH ALL YOUR SOUL, AND WITH ALL YOUR MIND
  - Article 2 THE SECOND COMMANDMENT
    - I. The Name of the Lord is Holy

From The Catechism of the Catholic Church – rosary.team