Chapter 23 — Part III: The Decalogue — Introduction on the Commandments in General
Section 15. The Observance Of The Commandments Is Necessary — Furthermore, it will contribute much to persuade (obedience to the law) if it is explained that such obedience is necessary, especially since in these our days there are not wanting those who, to their own serious injury, have the impious hardihood to assert that the observance of the law, whether easy or difficult, is by no means necessary to salvation.