Chapter 32 — Part III: The Decalogue — The Ninth and Tenth Commandments
Section 35. Among those evils the first is that by obedience to the impulse of passion, sin gains uncontrolled sway over the soul; hence the Apostle warns us: Let not sin, therefore, reign in your mortal body, so as to obey the lusts thereof. Just as resistance to the passions destroys the power of sin, so indulgence of the passions expels God from His kingdom and introduces sin in His place.