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Catechism of the Council of Trent: Baptism

Some errors in this text were corrected by AI.
Importance Of Instruction On Baptism
From what has been hitherto said on the Sacraments in general, we may judge how necessary it is, to a proper understanding of the doctrines of the Christian faith and to the practice of Christian piety, to know what the Catholic Church proposes for our belief on each Sacrament in particular.
Whoever reads the Apostle carefully will unhesitatingly conclude that a perfect knowledge of Baptism is particularly necessary to the faithful. For not only frequently, but also in language the most energetic, in language full of the Spirit of God, he renews the recollection of this mystery, declares its divine character, and in it places before us the death, burial and Resurrection of our Lord as objects both of our contemplation and imitation.
Pastors, therefore, can never think that they have bestowed sufficient labor and attention on the exposition of this Sacrament. Besides the Vigils of Easter and Pentecost, days on which the Church used to celebrate this Sacrament with the greatest devotion and special solemnity, and on which particularly, according to ancient practice, its divine mysteries were to be explained, pastors should also take occasion at other times to make it the subject of their instructions.
For this purpose a most convenient opportunity would seem to present itself whenever a pastor, being about to administer this Sacrament, finds himself surrounded by a considerable number of the faithful. On such occasions, it is true, his exposition cannot embrace everything that regards Baptism; but it will then be much easier to develop one or two points when the faithful can contemplate with a pious and attentive mind the meaning of those things which they hear and at the same time see it illustrated by the sacred ceremonies of Baptism. Each person, reading a lesson of admonition in the person of him who is receiving Baptism, will call to mind the promises by which he bound himself to God when he was baptised, and will reflect whether his life and conduct have been such as are promised by the profession of Christianity.

Names of this Sacrament

In order that the treatment of the subject may be clear, we must explain the nature and substance of Baptism, premising, however, an explanation of the word itself.
The word baptism, as is well known, is of Greek derivation. Although used in Sacred Scripture to express not only that ablution which forms part of the Sacrament, but also every species of ablution, and sometimes, figuratively, to express sufferings; yet it is employed by ecclesiastical writers to designate not every sort of bodily ablution, but that which forms part of the Sacrament and is administered with the prescribed form of words. In this sense the Apostles very frequently make use of the word in accordance with the institution of Christ the Lord.
This Sacrament the holy Fathers designate also by other names. St. Augustine informs us that it was sometimes called the Sacrament of Faith, because by receiving it we profess our faith in all the doctrines of Christianity.
By others it was termed Illumination, because by the faith which we profess in Baptism the heart is illumined; for as the Apostle also says, alluding to the time of Baptism, Call to mind the former days, wherein, being illumined, you endured a great fight of afflictions. Chrysostom, in his sermon to the baptised, calls it a purgation, because through it we purge away the old leaven, that we may become a new paste. He also calls it a burial, a planting, and the cross of Christ, the reasons for all which appellations may be gathered from the Epistle to the Romans.
St. Denis calls it the beginning of the most holy Commandments, for this obvious reason, that Baptism is, as it were, the gate through which we enter into the fellowship of the Christian life, and begin thenceforward to obey the Commandments. So much should be briefly explained concerning the name (of this Sacrament) .

Definition Of Baptism

With regard to the definition of Baptism although many can be given from sacred writers, nevertheless that which may be gathered from the words of our Lord recorded in John, and of the Apostle to the Ephesians, appears the most appropriate and suitable. Unless, says our Lord, a man be born again of water and the Holy Ghost, he cannot enter into the kingdom of God; and, speaking of the Church, the Apostle says, cleansing it by the laver of water in the word of life. Thus it follows that Baptism may be rightly and accurately defined: The Sacrament of regeneration by water in the word. By nature we are born from Adam children of wrath, but by Baptism we are regenerated in Christ, children of mercy. For He gave power to men to be made the sons of God, to them that believe in his name, who are born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.

Constituent Elements Of Baptism

But define Baptism as we may, the faithful are to be informed that this Sacrament consists of ablution, accompanied necessarily, according to the institution of our Lord, by certain solemn words. This is the uniform doctrine of the holy Fathers, as is proved by the following most explicit testimony of St. Augustine: The word is joined to the element, and it becomes a Sacrament.
It is all the more necessary to impress this on the minds of the faithful lest they fall into the common error of thinking that the baptismal water, preserved in the sacred font, constitutes the Sacrament. The Sacrament of Baptism can be said to exist only when we actually apply the water to someone by way of ablution, while using the words appointed by our Lord.

Matter of Baptism

Now since we said above, when treating of the Sacraments in general, that every Sacrament consists of matter and form, it is therefore necessary that pastors point out what constitutes each of these in Baptism. The matter, then, or element of this Sacrament, is any sort of natural water, which is simply and without qualification commonly called water, be it sea water, river water, water from a pond, well or fountain.

Testimony Of Scripture Concerning The Matter Of Baptism

For the Saviour taught that unless a man be born again of water and the Holy Ghost, he cannot enter into the kingdom of God. The Apostle also says that the Church was cleansed by the laver of water; and in the Epistle of St. John we read these words: There are three that give testimony on earth: the spirit, and the water, and the blood. Scripture affords other proofs which establish the same truth.
When, however, John the Baptist says that the Lord will come who will baptise in the Holy Ghost, and in fire, that is by no means to be understood of the matter of Baptism; but should be applied either to the interior operation of the Holy Ghost, or at least to the miracle performed on the day of Pentecost, when the Holy Ghost descended on the Apostles in the form of fire, as was foretold by Christ our Lord in these words: John indeed baptised with water, but you shall be baptised with the Holy Ghost, not many days hence.

Figures

The same was also signified by the Lord both by figures and by prophecies, as we know from Holy Scripture. According to the Prince of the Apostles in his first Epistle, the deluge which cleansed the world because the wickedness of men was great on the earth, and all the thought of their heart was bent upon evil, was a figure and image of this water. To omit the cleansing of Naaman the Syrian, and the admirable virtue of the pool of Bethsaida, and many similar types, manifestly symbolic of this mystery, the passage through the Red Sea, according to St. Paul in his Epistle to the Corinthians, was typical of this same water.

Prophecies

With regard to the predictions, the waters to which the Prophet Isaias so freely invites all that thirst, and those which Ezechiel in spirit saw issuing from the Temple, and also the fountain which Zachary foresaw, open to the house of David, and to the inhabitants of Jerusalem: for the washing of the sinner, and of the unclean woman, were, no doubt, intended to indicate and express the salutary waters of Baptism.

Fitness

The propriety of constituting water the matter of Baptism, of the nature and efficacy of which it is at once expressive, St. Jerome, in his Epistle to Oceanus, proves by many arguments.
Upon this subject pastors can teach in the first place that water, which is always at hand and within the reach of all, was the fittest matter of a Sacrament which is necessary to all for salvation. In the next place water is best adapted to signify the effect of Baptism. It washes away uncleanness, and is, therefore, strikingly illustrative of the virtue and efficacy of Baptism, which washes away the stains of sin. We may also add that, like water which cools the body, Baptism in a great measure extinguishes the fire of concupiscence.

Chrism Added To Water For Solemn Baptism

But it should be noted that while in case of necessity simple water unmixed with any other ingredient is sufficient for the matter of this Sacrament, yet when Baptism is administered in public with solemn ceremonies the Catholic Church, guided by Apostolic tradition, has uniformly observed the practice of adding holy chrism which, as is clear, more fully signifies the effect of Baptism. The people should also be taught that although it may sometimes be doubtful whether this or that water be genuine, such as the perfection of the Sacrament requires, it can never be a subject of doubt that the only matter from which the Sacrament of Baptism can be formed is natural water.