Council of Trent, 1545-1563

Chap. 1. [The Institution of the Priesthood of the New Law]¹

957. Sacrifice and priesthood are so united by the ordinance of God that both have existed in every law. Since, therefore, in the New Testament the Catholic Church has received from the institution of the Lord the holy, visible sacrifice of the Eucharist, it must also be confessed that there is in this Church a new visible and external priesthood [can. 1], into which the old has been translated [Heb. 7:12]. Moreover, that this was instituted by that same Lord our Savior [can. 3], and that to the apostles and their successors in the priesthood was handed down the power of consecrating, of offering and administering His body and blood, and also of forgiving and retaining sins, the Sacred Scriptures show and the tradition of the Catholic Church has always taught [can. 1].

Chap. 2. [The Seven Orders]

958. Moreover, since the ministry of this holy priesthood is a divine thing, it was proper that it should be exercised more worthily and with deeper veneration, that in the most well ordered arrangement of the Church, there should be different orders of ministers [Matt. 16:19; Luke 22:19; John 20:22 f.], who by virtue of their office should administer to the priesthood, so distributed that those who already had the clerical tonsure should ascend through the minor to the major orders [can. 2]. For the Sacred Scriptures make distinct mention not only of the priests, but also of the deacons [Acts 6:5; I Tim. 3:8 f.; Phil. 1:1], and teach in the most impressive words what is especially to be observed in their ordination; and from the very beginning of the Church the names of the following orders and the duties proper to each one are known to have been in use, namely those of the subdeacon, acolyte, exorcist, lector, and porter, though not of equal rank; for the subdiaconate is classed among the major orders by the Fathers and the sacred Councils, in which we also read very frequently of other inferior orders.

Chap. 3. [The Order of the Priesthood is Truly a Sacrament]

959. Since from the testimony of Scripture, apostolic tradition, and the unanimous consensus of opinion of the Fathers it is evident that by sacred ordination, which is performed by words and outward signs, grace is conferred, no one can doubt that order is truly and properly one of the seven sacraments of the Church [can. 3]. For the Apostle says: "I admonish thee that thou stir up the grace of God which is in thee by the imposition of my hands. For God has not given us the spirit of fear, but of power and of love and of sobriety" [II Tim. 1:6, 7; cf. I Tim. 4:14].