III. Offenses Against Truth

From The Catechism of the Catholic Church

2486
Since it violates the virtue of truthfulness, a lie does real violence to
another. It affects his ability to know, which is a condition of every judgment
and decision. It contains the seed of discord and all consequent evils. Lying
is destructive of society; it undermines trust among men and tears apart the
fabric of social relationships.

PART THREE: LIFE IN CHRIST

SECTION TWO THE TEN COMMANDMENTS
- CHAPTER TWO YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF
  - Article 8 THE EIGHTH COMMANDMENT
    - III. Offenses Against Truth

From The Catechism of the Catholic Church – rosary.team