IV. MUTABILITY OF DISCIPLINE
That ecclesiastical discipline should be subject to change is natural since it was made for men and by men. To claim that it is immutable would render the attainment of its end utterly impossible, since, in order to form and direct Christians, it must adapt itself to the variable circumstances of time and place, conditions of life, customs of peoples and races, being, in a certain sense, like St. Paul, all things to all men. Nevertheless, neither the actual changes nor the possibility of further alteration must be exaggerated. There is no change in those disciplinary measures through which the Church sets before the faithful and confirms the natural and the Divine law, nor in those strictly disciplinary regulations that are closely related to the natural or Divine law. Other disciplinary rules may and must be modified in proportion as they seem less efficacious for the social or individual welfare. Thomassin aptly says [Vetus et nova Ecclesiæ disciplina (ed. Lyons, 1706), preface, n. xvii]: “Whoever has the least idea of ecclesiastical laws, those that concern government as well as those that regulate morals, knows well that they are of two kinds. Some represent immutable rules of eternal truth, itself the fundamental law, the source and origin of these laws from the observance of which there is no dispensation, against which no prescription obtains, and which are not modified either by diversity of custom or vicissitudes of time. Other ecclesiastical rules and customs are by nature temporary, indifferent in themselves, more or less authoritative, useful, or necessary according to circumstances of time and place, having been established only to facilitate the observance of the fundamental and eternal law.” As to the variations of discipline concerning these secondary laws the same author describes them in these terms (loc. cit., n. xv): “While the Faith of the Church remains the same in all ages, it is not so with her discipline. This changes with time, grows old with the years, is rejuvenated, is subject to growth and decay. Though in its early days admirably vigorous, with time defects crept in. Later it overcame these defects and although along some lines its usefulness increased, in other ways its first splendour waned. That in its old age it languishes is evident from the leniency and indulgence which now seem absolutely necessary. However, all things fairly considered, it will appear that old age and youth have each their defects and good qualities.” Were it necessary to exemplify the mutability of ecclesiastical discipline it would be perplexing indeed to make a choice. The ancient catechumenate exists only in a few rites; the Latin Church no longer gives Communion to the laity under two kinds; the discipline relating to penance and indulgences has undergone a profound evolution; matrimonial law is still subject to modifications; fasting is not what it formerly was; the use of censures in penal law is but the shadow of what it was in the Middle Ages. Many other examples will easily occur to the mind of the well-informed reader.