Reply to Objection 4: Among turtledoves the older ones are better than the young; while with doves the case is the reverse. Wherefore, as Rabbi Moses observes (Doct. Perplex. iii), turtledoves and young doves are commanded to be offered, because nothing should be offered to God but what is best.
Reply to Objection 5: The animals which were offered in sacrifice were slain, because it is by being killed that they become useful to man, forasmuch as God gave them to man for food. Wherefore also they were burnt with fire: because it is by being cooked that they are made fit for human consumption. Moreover the slaying of the animals signified the destruction of sins: and also that man deserved death on account of his sins; as though those animals were slain in man's stead, in order to betoken the expiation of sins. Again the slaying of these animals signified the slaying of Christ.
Reply to Objection 6: The Law fixed the special manner of slaying the sacrificial animals in order to exclude other ways of killing, whereby idolaters sacrificed animals to idols. Or again, as Rabbi Moses says (Doct. Perplex. iii), "the Law chose that manner of slaying which was least painful to the slain animal." This excluded cruelty on the part of the offerers, and any mangling of the animals slain.
Reply to Objection 7: It is because unclean animals are wont to be held in contempt among men, that it was forbidden to offer them in sacrifice to God: and for this reason too they were forbidden ( Dt. 23:18 ) to offer "the hire of a strumpet or the price of a dog in the house of . . . God." For the same reason they did not offer animals before the seventh day, because such were abortive as it were, the flesh being not yet firm on account of its exceeding softness.
Reply to Objection 8: There were three kinds of sacrifices. There was one in which the victim was entirely consumed by fire: this was called "a holocaust, i.e. all burnt." For this kind of sacrifice was offered to God specially to show reverence to His majesty, and love of His goodness: and typified the state of perfection as regards the fulfilment of the counsels. Wherefore the whole was burnt up: so that as the whole animal by being dissolved into vapor soared aloft, so it might denote that the whole man, and whatever belongs to him, are subject to the authority of God, and should be offered to Him.
Another sacrifice was the "sin-offering," which was offered to God on account of man's need for the forgiveness of sin: and this typifies the state of penitents in satisfying for sins. It was divided into two parts: for one part was burnt; while the other was granted to the use of the priests to signify that remission of sins is granted by God through the ministry of His priests. When, however, this sacrifice was offered for the sins of the whole people, or specially for the sin of the priest, the whole victim was burnt up. For it was not fitting that the priests should have the use of that which was offered for their own sins, to signify that nothing sinful should remain in them. Moreover, this would not be satisfaction for sin: for if the offering were granted to the use of those for whose sins it was offered, it would seem to be the same as if it had not been offered.
The third kind of sacrifice was called the "peace-offering," which was offered to God, either in thanksgiving, or for the welfare and prosperity of the offerers, in acknowledgment of benefits already received or yet to be received: and this typifies the state of those who are proficient in the observance of the commandments. These sacrifices were divided into three parts: for one part was burnt in honor of God; another part was allotted to the use of the priests; and the third part to the use of the offerers; in order to signify that man's salvation is from God, by the direction of God's ministers, and through the cooperation of those who are saved.
But it was the universal rule that the blood and fat were not allotted to the use either of the priests or of the offerers: the blood being poured out at the foot of the altar, in honor of God, while the fat was burnt upon the altar ( Lev. 9:9 , 10 ). The reason for this was, first, in order to prevent idolatry: because idolaters used to drink the blood and eat the fat of the victims, according to Dt. 32:38 : "Of whose victims they eat the fat, and drank the wine of their drink-offerings." Secondly, in order to form them to a right way of living. For they were forbidden the use of the blood that they might abhor the shedding of human blood; wherefore it is written ( Gen. 9:4 , 5 ): "Flesh with blood you shall not eat: for I will require the blood of your lives": and they were forbidden to eat the fat, in order to withdraw them from lasciviousness; hence it is written ( Ezech. 34:3 ): "You have killed that which was fat." Thirdly, on account of the reverence due to God: because blood is most necessary for life, for which reason "life" is said to be "in the blood" ( Lev. 17:11 , 14 ): while fat is a sign of abundant nourishment. Wherefore, in order to show that to God we owe both life and a sufficiency of all good things, the blood was poured out, and the fat burnt up in His honor. Fourthly, in order to foreshadow the shedding of Christ's blood, and the abundance of His charity, whereby He offered Himself to God for us.
In the peace-offerings, the breast-bone and the right shoulder were allotted to the use of the priest, in order to prevent a certain kind of divination which is known as "spatulamantia," so called because it was customary in divining to use the shoulder-blade [spatula], and the breast-bone of the animals offered in sacrifice; wherefore these things were taken away from the offerers. This is also denoted the priest's need of wisdom in the heart, to instruct the people---this was signified by the breast-bone, which covers the heart; and his need of fortitude, in order to bear with human frailty---and this was signified by the right shoulder.
Reply to Objection 9: Because the holocaust was the most perfect kind of sacrifice, therefore none but a male was offered for a holocaust: because the female is an imperfect animal. The offering of turtledoves and doves was on account of the poverty of the offerers, who were unable to offer bigger animals. And since peace-victims were offered freely, and no one was bound to offer them against his will, hence these birds were offered not among the peace-victims, but among the holocausts and victims for sin, which man was obliged to offer at times. Moreover these birds, on account of their lofty flight, while befitting the perfection of the holocausts: and were suitable for sin-offerings because their song is doleful.
Reply to Objection 10: The holocaust was the chief of all the sacrifices: because all were burnt in honor of God, and nothing of it was eaten. The second place in holiness, belongs to the sacrifice for sins, which was eaten in the court only, and on the very day of the sacrifice ( Lev. 7:6 , 15 ). The third place must be given to the peace-offerings of thanksgiving, which were eaten on the same day, but anywhere in Jerusalem. Fourth in order were the "ex-voto" peace-offerings, the flesh of which could be eaten even on the morrow. The reason for this order is that man is bound to God, chiefly on account of His majesty; secondly, on account of the sins he has committed; thirdly, because of the benefits he has already received from Him; fourthly, by reason of the benefits he hopes to receive from Him.
Reply to Objection 11: Sins are more grievous by reason of the state of the sinner, as stated above (Q[73], A[10]): wherefore different victims are commanded to be offered for the sin of a priest, or of a prince, or of some other private individual. "But," as Rabbi Moses says (Doct. Perplex. iii), "we must take note that the more grievous the sin, the lower the species of animals offered for it. Wherefore the goat, which is a very base animal, was offered for idolatry; while a calf was offered for a priest's ignorance, and a ram for the negligence of a prince."
Reply to Objection 12: In the matter of sacrifices the Law had in view the poverty of the offerers; so that those who could not have a four-footed animal at their disposal, might at least offer a bird; and that he who could not have a bird might at least offer bread; and that if a man had not even bread he might offer flour or ears of corn.
The figurative cause is that the bread signifies Christ Who is the "living bread" ( John 6:41 , 51 ). He was indeed an ear of corn, as it were, during the state of the law of nature, in the faith of the patriarchs; He was like flour in the doctrine of the Law of the prophets; and He was like perfect bread after He had taken human nature; baked in the fire, i.e. formed by the Holy Ghost in the oven of the virginal womb; baked again in a pan by the toils which He suffered in the world; and consumed by fire on the cross as on a gridiron.
Reply to Objection 13: The products of the soil are useful to man, either as food, and of these bread was offered; or as drink, and of these wine was offered; or as seasoning, and of these oil and salt were offered; or as healing, and of these they offered incense, which both smells sweetly and binds easily together.
Now the bread foreshadowed the flesh of Christ; and the wine, His blood, whereby we were redeemed; oil betokens the grace of Christ; salt, His knowledge; incense, His prayer.
Reply to Objection 14: Honey was not offered in the sacrifices to God, both because it was wont to be offered in the sacrifices to idols; and in order to denote the absence of all carnal sweetness and pleasure from those who intend to sacrifice to God. Leaven was not offered, to denote the exclusion of corruption. Perhaps too, it was wont to be offered in the sacrifices to idols.
Salt, however, was offered, because it wards off the corruption of putrefaction: for sacrifices offered to God should be incorrupt. Moreover, salt signifies the discretion of wisdom, or again, mortification of the flesh.
Incense was offered to denote devotion of the heart, which is necessary in the offerer; and again, to signify the odor of a good name: for incense is composed of matter, both rich and fragrant. And since the sacrifice "of jealousy" did not proceed from devotion, but rather from suspicion, therefore incense was not offered therein ( Num. 5:15 ).
Whether sufficient reason can be assigned for the ceremonies pertaining to holy things?
Objection 1: It would seem that no sufficient reason can be assigned for the ceremonies of the Old Law that pertain to holy things. For Paul said ( Acts 17:24 ): "God Who made the world and all things therein; He being Lord of heaven and earth, dwelleth not in temples made by hands." It was therefore unfitting that in the Old Law a tabernacle or temple should be set up for the worship of God.
Objection 2: Further, the state of the Old Law was not changed except by Christ. But the tabernacle denoted the state of the Old Law. Therefore it should not have been changed by the building of a temple.
Objection 3: Further, the Divine Law, more than any other indeed, should lead man to the worship of God. But an increase of divine worship requires multiplication of altars and temples; as is evident in regard to the New Law. Therefore it seems that also under the Old Law there should have been not only one tabernacle or temple, but many.
Objection 4: Further, the tabernacle or temple was ordained to the worship of God. But in God we should worship above all His unity and simplicity. Therefore it seems unbecoming for the tabernacle or temple to be divided by means of veils.
Objection 5: Further, the power of the First Mover, i.e. God, appears first of all in the east, for it is in that quarter that the first movement begins. But the tabernacle was set up for the worship of God. Therefore it should have been built so as to point to the east rather than the west.