Hence we consecrate those things which we make use of in this sacrament; both that we may show our reverence for the sacrament, and in order to represent the holiness which is the effect of the Passion of Christ, according to Heb. 13:12: "Jesus, that He might sanctify the people by His own blood," etc.
Reply Obj. 1: This sacrament ought as a rule to be celebrated in a house, whereby the Church is signified, according to 1 Tim. 3:15: "That thou mayest know how thou oughtest to behave thyself in the house of God, which is the Church of the living God." Because "outside the Church there is no place for the true sacrifice," as Augustine says (Liber Sentent. Prosp. xv). And because the Church was not to be confined within the territories of the Jewish people, but was to be established throughout the whole world, therefore Christ's Passion was not celebrated within the city of the Jews, but in the open country, that so the whole world might serve as a house for Christ's Passion. Nevertheless, as is said in De Consecr., dist. 1, "if a church be not to hand, we permit travelers to celebrate mass in the open air, or in a tent, if there be a consecrated altar-table to hand, and the other requisites belonging to the sacred function."
Reply Obj. 2: The house in which this sacrament is celebrated denotes the Church, and is termed a church; and so it is fittingly consecrated, both to represent the holiness which the Church acquired from the Passion, as well as to denote the holiness required of them who have to receive this sacrament. By the altar Christ Himself is signified, of Whom the Apostle says (Heb. 13:15): "Through Him we offer a sacrifice of praise to God." Hence the consecration of the altar signifies Christ's holiness, of which it was said (Luke 1:35): "The Holy one born of thee shall be called the Son of God." Hence we read in De Consecr., dist. 1: "It has seemed pleasing for the altars to be consecrated not merely with the anointing of chrism, but likewise with the priestly blessing."
And therefore, as a rule, it is not lawful to celebrate this sacrament except in a consecrated house. Hence it is enacted (De Consecr., dist. 1): "Let no priest presume to say mass except in places consecrated by the bishop." And furthermore because pagans and other unbelievers are not members of the Church, therefore we read (De Consecr., dist. 1): "It is not lawful to bless a church in which the bodies of unbelievers are buried, but if it seem suitable for consecration, then, after removing the corpses and tearing down the walls or beams, let it be rebuilt. If, however, it has been already consecrated, and the faithful lie in it, it is lawful to celebrate mass therein." Nevertheless in a case of necessity this sacrament can be performed in houses which have not been consecrated, or which have been profaned; but with the bishop's consent. Hence we read in the same distinction: "We deem that masses are not to be celebrated everywhere, but in places consecrated by the bishop, or where he gives permission." But not without a portable altar consecrated by the bishop: hence in the same distinction we read: "We permit that, if the churches be devastated or burned, masses may be celebrated in chapels, with a consecrated altar." For because Christ's holiness is the fount of all the Church's holiness, therefore in necessity a consecrated altar suffices for performing this sacrament. And on this account a church is never consecrated without consecrating the altar. Yet sometimes an altar is consecrated apart from the church, with the relics of the saints, "whose lives are hidden with Christ in God" (Col. 3:3). Accordingly under the same distinction we read: "It is our pleasure that altars, in which no relics of saints are found enclosed, be thrown down, if possible, by the bishops presiding over such places."
Reply Obj. 3: The church, altar, and other like inanimate things are consecrated, not because they are capable of receiving grace, but because they acquire special spiritual virtue from the consecration, whereby they are rendered fit for the Divine worship, so that man derives devotion therefrom, making him more fitted for Divine functions, unless this be hindered by want of reverence. Hence it is written (2 Macc. 3:38): "There is undoubtedly in that place a certain power of God; for He that hath His dwelling in the heavens is the visitor, and the protector of that place."
Hence it is that such places are cleansed and exorcised before being consecrated, that the enemy's power may be driven forth. And for the same reason churches defiled by shedding of blood or seed are reconciled: because some machination of the enemy is apparent on account of the sin committed there. And for this reason we read in the same distinction: "Wherever you find churches of the Arians, consecrate them as Catholic churches without delay by means of devout prayers and rites." Hence, too, it is that some say with probability, that by entering a consecrated church one obtains forgiveness of venial sins, just as one does by the sprinkling of holy water; alleging the words of Ps. 84:2, 3: "Lord, Thou hast blessed Thy land . . . Thou hast forgiven the iniquity of Thy people." And therefore, in consequence of the virtue acquired by a church's consecration, the consecration is never repeated. Accordingly we find in the same distinction the following words quoted from the Council of Nicaea: "Churches which have once been consecrated, must not be consecrated again, except they be devastated by fire, or defiled by shedding of blood or of anyone's seed; because, just as a child once baptized in the name of the Father, and of the Son, and of the Holy Ghost, ought not to be baptized again, so neither ought a place, once dedicated to God, to be consecrated again, except owing to the causes mentioned above; provided that the consecrators held faith in the Holy Trinity": in fact, those outside the Church cannot consecrate. But, as we read in the same distinction: "Churches or altars of doubtful consecration are to be consecrated anew."
And since they acquire special spiritual virtue from their consecration, we find it laid down in the same distinction that "the beams of a dedicated church ought not to be used for any other purpose, except it be for some other church, or else they are to be burned, or put to the use of brethren in some monastery: but on no account are they to be discarded for works of the laity." We read there, too, that "the altar covering, chair, candlesticks, and veil, are to be burned when warn out; and their ashes are to be placed in the baptistery, or in the walls, or else cast into the trenches beneath the flag-stones, so as not to be defiled by the feet of those that enter."
Reply Obj. 4: Since the consecration of the altar signifies Christ's holiness, and the consecration of a house the holiness of the entire Church, therefore the consecration of a church or of an altar is more fittingly commemorated. And on this account the solemnity of a church dedication is observed for eight days, in order to signify the happy resurrection of Christ and of the Church's members. Nor is the consecration of a church or altar man's doing only, since it has a spiritual virtue. Hence in the same distinction (De Consecr.) it is said: "The solemnities of the dedication of churches are to be solemnly celebrated each year: and that dedications are to be kept up for eight days, you will find in the third book of Kings" (8:66).
Reply Obj. 5: As we read in De Consecr., dist. 1, "altars, if not of stone, are not to be consecrated with the anointing of chrism." And this is in keeping with the signification of this sacrament; both because the altar signifies Christ, for in 1 Cor. 10:3, it is written, "But the rock was Christ": and because Christ's body was laid in a stone sepulchre. This is also in keeping with the use of the sacrament. Because stone is solid, and may be found everywhere, which was not necessary in the old Law, when the altar was made in one place. As to the commandment to make the altar of earth, or of unhewn stones, this was given in order to remove idolatry.
Reply Obj. 6: As is laid down in the same distinction, "formerly the priests did not use golden but wooden chalices; but Pope Zephyrinus ordered the mass to be said with glass patens; and subsequently Pope Urban had everything made of silver." Afterwards it was decided that "the Lord's chalice with the paten should be made entirely of gold, or of silver or at least of tin. But it is not to be made of brass, or copper, because the action of the wine thereon produces verdigris, and provokes vomiting. But no one is to presume to sing mass with a chalice of wood or of glass," because as the wood is porous, the consecrated blood would remain in it; while glass is brittle and there might arise danger of breakage; and the same applies to stone. Consequently, out of reverence for the sacrament, it was enacted that the chalice should be made of the aforesaid materials.