(b) The Gentiles were not bound by the laws peculiar to the Mosaic Code, but only by the common precepts, natural and supernatural, that were in force in the state of the Law of Nature. But it was permitted to Gentiles to become proselytes, that by observing Mosaic rites they might more easily and more perfectly work out their salvation.
335. The Duration of the Mosaic Law.—(a) The Law began when experience had proved that knowledge is not sufficient to make man virtuous, that is, at a time when, in spite of the Natural Law, the peoples were turning to polytheism and vice: “The Law was given on account of transgression” (Gal, iii. 19).
(b) The Law ended when experience had shown that external observance is not sufficient for holiness, that is, at the time when Judaism was degenerating into formalism, putting the letter before the spirit of the Law: “What the Law could not do, God sending His own Son, hath condemned sin in the flesh, that the justification of the Law might be fulfilled in us” (Rom., viii. 3, 4).
336. Deuteronomy, vi. 1, describes the Mosaic Law as precepts, ceremonies and judgments; and the commandments of the Old Testament can be classified according to this threefold division. (a) The moral precepts defined the duties to God and man that arise from the dictates of reason and the Natural Law; (b) the ceremonial prescriptions were determinations of the religious duties to God contained in the moral law, and rules concerning the performance of worship based on the positive ordinance of God; (c) the judgments were determinations of social duties contained in the moral law; they were the civil or political code of the theocratic nation which had its force from the positive ordinance of God.
337. The moral precepts are contained in the Decalogue, which is a sum of the whole Natural Law, inasmuch as the general principles of the Natural Law are implicit therein in their immediate conclusions, while the remote conclusions are virtually found in the Commandments as in their principles (see 301).
338. The Decalogue expresses man’s duties: (a) towards God, viz., loyalty (First Commandment), reverence (Second), service (Third)—all of which are Laws of the First Table; (b) towards parents (Fourth), and all fellow-men, viz., that no injustice be done them by sins of deed (Fifth, Sixth, Seventh), of mouth (Eighth), or of heart (Ninth, Tenth)—all of which are Laws of the Second Table.
339. The further moral precepts which were added after the giving of the Decalogue can all be reduced to one or the other of the Ten Commandments. Examples: The prohibition against fortune-telling belongs to the First; the prohibition against perjury and false teaching, to the Second; the commandment to honor the aged, to the Fourth; the prohibition against detraction, to the Eighth.
340. The ceremonial laws, which prescribed the manner of performing the divine worship or of acting as befitted the Chosen People, and which prefigured the worship and people of the New Testament, were numerous, in order that the Jews might be more easily preserved from pagan rites and customs. The ceremonies they regulated were of four kinds: (a) the sacrifices through which God was worshipped and through which the sacrifice of Christ was prefigured (e.g., the holocausts, peace-offerings, sin-offerings); (b) the sacred times and places, things and persons set apart in order to give more dignity to divine worship and to foreshadow more distinctly the good things to come; (c) the sacraments by which the people or sacred ministers were consecrated to the worship of God and were made to prefigure Christ (e.g., circumcision and the consecration of Levites); (d) the customs which regulated the details of life so that both priests and people might act as became their special calling, and might be types and figures of the Christian people (e.g., the laws about food, dress, etc.).
341. Unlike the moral laws, which had existed before Moses as the Natural Law and which continue under the Christian dispensation, the ceremonial laws were temporary. Thus: (a) before Moses other ceremonies were observed by the patriarchs (e.g., the sacrifice of Abel, the altars of Abraham and Jacob, the priesthood of Melchisedech, etc.); (b) after the coming of Christ, distinctions of food, new moons, sabbaths, and other Mosaic ceremonies were abrogated, since the figures of future things had been superseded by rites that commemorated benefits that were present.
342. We may distinguish four periods in the history of the Mosaic ceremonial law: (a) from Moses until Christ, it was the divinely ordained manner of worshipping God, and was obligatory for the Chosen People; (b) at the death of Christ, when the New Testament began, the Mosaic ceremonial ceased to be obligatory; (c) until the Gospel had been sufficiently promulgated (i.e., until the destruction of the City and the Temple of Jerusalem), the ceremonial law was permitted to Jewish converts, not as prefiguring Christ, but as a form of divine worship; (d) after the Gospel had been sufficiently proclaimed, it was no longer lawful to conform to the Mosaic observances.