The Maltese guidelines may be the first time that bishops have officially taught that the moral law is impossible to observe, contradicting the plain teaching of the Council of Trent. Their guidelines expose the very shaky foundation of Amoris Laetitia, which is why it will not long endure. But in raising the stakes to include the fullness of the Church’s teaching on conscience, it is more likely now that, first, a great crisis will occur.