I. The Natural Moral Law

From The Catechism of the Catholic Church

1955
The “divine and natural” law⁶ shows man the way to follow so
as to practice the good and attain his end. the natural law states the first
and essential precepts which govern the moral life. It hinges upon the desire
for God and submission to him, who is the source and judge of all that is good,
as well as upon the sense that the other is one’s equal. Its principal precepts
are expressed in the Decalogue. This law is called “natural,” not in
reference to the nature of irrational beings, but because reason which decrees
it properly belongs to human nature:

PART THREE: LIFE IN CHRIST

SECTION ONE MAN’S VOCATION LIFE IN THE SPIRIT
- CHAPTER THREE GOD’S SALVATION: LAW AND GRACE
  - Article 1 THE MORAL LAW
    - I. The Natural Moral Law

From The Catechism of the Catholic Church – rosary.team