"And the Lord called Moses, and spoke to him from the tabernacle of the testimony, saying: Speak to the children of Israel, and thou shalt say to them: The man among you that shall offer to the Lord a sacrifice of the cattle, that is, offering victims of oxen and sheep, if his offering be a holocaust and of the herd, he shall offer a male, without blemish, at the door of the tabernacle of the testimony, to make the Lord favorable to him. And he shall put his hand upon the head of the victim, and it shall be acceptable and help to his expiation" (Lev. i. 1 et seq.).
After enumerating all the sacrifices and ceremonies, the sacred writer closes the book of Leviticus with the words, "These are the precepts which the Lord commanded Moses for the children of Israel in Mount Sinai," thus showing that He considers ceremonies necessary to divine worship.
The religion instituted by Our Lord and Saviour Jesus Christ is more spiritual than that of the Old Law. Nevertheless He did not discard ceremonies. In the Garden of Gethsemani He fell upon His knees in humble supplication. He went in procession to Jerusalem preceded by a great multitude strewing palm-branches on the road and singing, "Hosanna to the Son of David." Before He cured the deaf and dumb man, He put His fingers into his ears and touched his tongue with spittle, and looking up to heaven He groaned and said, "Ephpheta," which is, "Be thou opened."
At the Last Supper He invoked a blessing on the bread and wine, and after the supper He chanted a hymn with His disciples—ceremonies similar to those used in the Mass. When He imparted the Holy Ghost to His apostles, He breathed upon them. In a similar way they and their successors communicated the Holy Ghost upon others by breathing upon them, laying their hands upon them and praying over them, when conferring the sacrament of Holy Orders.
St. James directs that if any man is sick he shall call in a priest of the Church, who shall anoint him with oil, as is done in the sacrament of Extreme Unction.
We must, therefore, admit that ceremonies used in the worship of God are reasonable, since they are sanctioned by God in the Old Law and by Jesus Christ and His apostles in the New Testament.
All these acts of Our Saviour—the prostration in the Garden, the procession to Jerusalem, the touching of the deaf man's ears, the chanting of the hymn, the laying on of hands, the anointing of the sick—are but so many ceremonies serving as models of the ceremonies used by the Catholic Church in her public worship and in the administration of her sacraments.
[II. Vestments Used by the Priest at Mass]
BEFORE entering upon an explanation of the ceremonies of the Mass, which is our principal act of public worship, let us examine the meaning of the vestments worn by the priest during the celebration of that august sacrifice. First, it is well to remember that these vestments come down to us from the time of the apostles, and have the weight of antiquity hanging upon them. Hence, if they did not demand our respect as memorials of Christ, they are at least deserving of attention on account of their antiquity.
The 28th chapter of Exodus tells us the sacred vestments God wished the priests of the Old Law to wear during the public worship. "And these shall be the vestments which they shall make: a rational and an ephod, a tunic and a straight linen garment, a mitre and a girdle. They shall make the holy vestments for thy brother Aaron and his sons, that they may do the office of priesthood unto Me." As God in the Old Law prescribed vestments for the priests, so the Church, guided by God, prescribes sacred vestments to be worn by the priest of the New Law while engaged in the sacred mysteries.