II. Taking the Name of the Lord in Vain

From The Catechism of the Catholic Church

2155
The holiness of the divine name demands that we neither use it for trivial
matters, nor take an oath which on the basis of the circumstances could be
interpreted as approval of an authority unjustly requiring it. When an oath is
required by illegitimate civil authorities, it may be refused. It must be
refused when it is required for purposes contrary to the dignity of persons or
to ecclesial communion.

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