II. Taking the Name of the Lord in Vain

From The Catechism of the Catholic Church

2151
Rejection of false oaths is a duty toward God. As Creator and Lord, God is the
norm of all truth. Human speech is either in accord with or in opposition to
God who is Truth itself. When it is truthful and legitimate, an oath highlights
the relationship of human speech with God’s truth. A false oath calls on God to
be witness to a lie.

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
    - II. Taking the Name of the Lord in Vain

From The Catechism of the Catholic Church – rosary.team