IV. Offenses Against the Dignity of Marriage

From The Catechism of the Catholic Church

2388
Incest designates intimate relations between relatives or in-laws within a
degree that prohibits marriage between them.¹⁸⁰ St. Paul stigmatizes
this especially grave offense: “It is actually reported that there is
immorality among you . . . for a man is living with his father’s wife…. In
the name of the Lord Jesus … you are to deliver this man to Satan for the
destruction of the flesh….”¹⁸¹ Incest corrupts family relationships
and marks a regression toward animality.

PART THREE: LIFE IN CHRIST

SECTION TWO THE TEN COMMANDMENTS
- CHAPTER TWO YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF
  - Article 6 THE SIXTH COMMANDMENT
    - IV. Offenses Against the Dignity of Marriage

From The Catechism of the Catholic Church – rosary.team