In reference to their being destined to the ministry, the fat of the ram, one roll of bread, and the right shoulder were placed on their hands, to show that they received the power of offering these things to the Lord: while the Levites were initiated to the ministry by being brought into the tabernacle of the covenant, as being destined to the ministry touching the vessels of the sanctuary.
The figurative reason of these things was that those who are to be consecrated to the spiritual ministry of Christ, should be first of all purified by the waters of Baptism, and by the waters of tears, in their faith in Christ's Passion, which is a sacrifice both of expiation and of purification. They have also to shave all the hair of their body, i.e. all evil thoughts. They should, moreover, be decked with virtues, and be consecrated with the oil of the Holy Ghost, and with the sprinkling of Christ's blood. And thus they should be intent on the fulfilment of their spiritual ministry.
Reply Obj. 10: As already stated (A. 4), the purpose of the Law was to induce men to have reverence for the divine worship: and this in two ways; first, by excluding from the worship of God whatever might be an object of contempt; secondly, by introducing into the divine worship all that seemed to savor of reverence. And, indeed, if this was observed in regard to the tabernacle and its vessels, and in the animals to be sacrificed, much more was it to be observed in the very ministers. Wherefore, in order to obviate contempt for the ministers, it was prescribed that they should have no bodily stain or defect: since men so deformed are wont to be despised by others. For the same reason it was also commanded that the choice of those who were to be destined to the service of God was not to be made in a broadcast manner from any family, but according to their descent from one particular stock, thus giving them distinction and nobility.
In order that they might be revered, special ornate vestments were appointed for their use, and a special form of consecration. This indeed is the general reason of ornate garments. But the high-priest in particular had eight vestments. First, he had a linen tunic. Secondly, he had a purple tunic; round the bottom of which were placed "little bells" and "pomegranates of violet, and purple, and scarlet twice dyed." Thirdly, he had the ephod, which covered his shoulders and his breast down to the girdle; and it was made of gold, and violet and purple, and scarlet twice dyed and twisted linen: and on his shoulders he bore two onyx stones, on which were graven the names of the children of Israel. Fourthly, he had the rational, made of the same material; it was square in shape, and was worn on the breast, and was fastened to the ephod. On this rational there were twelve precious stones set in four rows, on which also were graven the names of the children of Israel, in token that the priest bore the burden of the whole people, since he bore their names on his shoulders; and that it was his duty ever to think of their welfare, since he wore them on his breast, bearing them in his heart, so to speak. And the Lord commanded the "Doctrine and Truth" to be put in the rational: for certain matters regarding moral and dogmatic truth were written on it. The Jews indeed pretend that on the rational was placed a stone which changed color according to the various things which were about to happen to the children of Israel: and this they call the "Truth and Doctrine." Fifthly, he wore a belt or girdle made of the four colors mentioned above. Sixthly, there was the tiara or mitre which was made of linen. Seventhly, there was the golden plate which hung over his forehead; on it was inscribed the Lord's name. Eighthly, there were "the linen breeches to cover the flesh of their nakedness," when they went up to the sanctuary or altar. Of these eight vestments the lesser priests had four, viz. the linen tunic and breeches, the belt and the tiara.
According to some, the literal reason for these vestments was that they denoted the disposition of the terrestrial globe; as though the high-priest confessed himself to be the minister of the Creator of the world, wherefore it is written (Wis. 18:24): "In the robe" of Aaron "was the whole world" described. For the linen breeches signified the earth out of which the flax grows. The surrounding belt signified the ocean which surrounds the earth. The violet tunic denoted the air by its color: its little bells betoken the thunder; the pomegranates, the lightning. The ephod, by its many colors, signified the starry heaven; the two onyx stones denoted the two hemispheres, or the sun and moon. The twelve precious stones on the breast are the twelve signs of the zodiac: and they are said to have been placed on the rational because in heaven are the types (rationes) of earthly things, according to Job 38:33: "Dost thou know the order of heaven, and canst thou set down the reason (rationem) thereof on the earth?" The turban or tiara signified the empyrean: the golden plate was a token of God, the governor of the universe.
The figurative reason is evident. Because bodily stains or defects wherefrom the priests had to be immune, signify the various vices and sins from which they should be free. Thus it is forbidden that he should be blind, i.e. he ought not to be ignorant: he must not be lame, i.e. vacillating and uncertain of purpose: that he must have "a little, or a great, or a crooked nose," i.e. that he should not, from lack of discretion, exceed in one direction or in another, or even exercise some base occupation: for the nose signifies discretion, because it discerns odors. It is forbidden that he should have "a broken foot" or "hand," i.e. he should not lose the power of doing good works or of advancing in virtue. He is rejected, too, if he have a swelling either in front or behind [Vulg.: 'if he be crook-backed']: by which is signified too much love of earthly things: if he be blear-eyed, i.e. if his mind is darkened by carnal affections: for running of the eyes is caused by a flow of matter. He is also rejected if he had "a pearl in his eye," i.e. if he presumes in his own estimation that he is clothed in the white robe of righteousness. Again, he is rejected "if he have a continued scab," i.e. lustfulness of the flesh: also, if he have "a dry scurf," which covers the body without giving pain, and is a blemish on the comeliness of the members; which denotes avarice. Lastly, he is rejected "if he have a rupture" or hernia; through baseness rending his heart, though it appear not in his deeds.
The vestments denote the virtues of God's ministers. Now there are four things that are necessary to all His ministers, viz. chastity denoted by the breeches; a pure life, signified by the linen tunic; the moderation of discretion, betokened by the girdle; and rectitude of purpose, denoted by the mitre covering the head. But the high-priests needed four other things in addition to these. First, a continual recollection of God in their thoughts; and this was signified by the golden plate worn over the forehead, with the name of God engraved thereon. Secondly, they had to bear with the shortcomings of the people: this was denoted by the ephod which they bore on their shoulders. Thirdly, they had to carry the people in their mind and heart by the solicitude of charity, in token of which they wore the rational. Fourthly, they had to lead a godly life by performing works of perfection; and this was signified by the violet tunic. Hence little golden bells were fixed to the bottom of the violet tunic, which bells signified the teaching of divine things united in the high-priest to his godly mode of life. In addition to these were the pomegranates, signifying unity of faith and concord in good morals: because his doctrine should hold together in such a way that it should not rend asunder the unity of faith and peace. ________________________
SIXTH ARTICLE [I-II, Q. 102, Art. 6]
Whether There Was Any Reasonable Cause for the Ceremonial Observances?
Objection 1: It would seem that there was no reasonable cause for the ceremonial observances. Because, as the Apostle says (1 Tim. 4:4), "every creature of God is good, and nothing to be rejected that is received with thanksgiving." It was therefore unfitting that they should be forbidden to eat certain foods, as being unclean according to Lev. 11 [*Cf. Deut. 14].