BAPTISM. Concerning the origin of Christian baptism we cannot make statements which are certain. Jesus indeed let himself be baptised by John the Baptist; but that he himself baptised is nowhere reported, and it is expressly contested by S. John's Gospel, iv. 2. In the same passage, however (and in iii. 22), it is asserted that the disciples had already administered baptism in Jesus' life-time, a report which we have every reason to treat with the greatest scepticism. In the primitive community, on the other hand, baptism is universally practised as a rite of admission into the Christian community, and we meet with it as an institution taken for granted both in the circles of the Jerusalem community and in the mission districts of the Apostle Paul. Paul himself is baptised after his conversion (Acts ix. 18), he himself baptised and had the ceremony performed by his assistants (I Cor., i. 16), and, what is of special importance, he assumes that all those who belong to the Christian community, Pagans as well as Jews, are baptised (I Cor., xii. 13).
Jewish and Christian Baptism.—The act itself took place without special preparation, as soon as the new convert confessed his faith in Christ and desired to become a member of the corn munity : the baptism of the eunuch of Queen Candace (Acts viii. 38) is a good instance of this. Everywhere in the oldest sources it is stated that baptism takes place "in the name of Jesus." For the first time in the relatively late final chapter of S. Matthew's Gospel the command to baptise with the trinitarian formula (in the name of the Father and of the Son and of the Holy Spirit, Mt. xxviii. 19) is put into the mouth of Jesus.
The so-called Jewish baptism of proselytes has been pointed to in explanation of this rite. It was in fact a strict regulation that a pagan convert to Judaism must, after his circumcision, go through a purificatory washing (Lev. xv. Num. xix.) which washed from him his pagan impurity, and its execution made him for the first time a member, fully qualified and with full status, of the people of Israel. It cannot be denied that this proselyte baptism has great similarity to Christian baptism. Yet it can be said definitely that Christian baptism cannot be derived from this Jewish prototype, because Christian Jews also had to undergo Christian baptism, whilst the meaning of proselyte baptism, as the washing away of ritual impurity, could only have been con sidered in relation to pagans. We hear further of a baptism as a ceremony of admission in the mysterious Jewish order of the Essenes; and here baptism appears to have had a sacramental meaning which was more than symbolic or ritual : yet our informa tion, especially about the diffusion of the Essenes and their significance in the whole system of the Jewish people, is too scanty to allow with any probability of the connection of Chris tian baptism with these reports.
What lies nearest to hand is to start rather from the baptism which Jesus himself underwent, namely the baptism of John. Though much in the picture of this prophet of the wilderness may be enigmatical and in dispute, yet so much is clear from all the reports, that he baptised Jews and pagans without distinction in the Jordan to the confession and forgiveness of sins, and that he connected with this action the proclamation of the approach ing kingdom of God as a judgment. His baptism was thus not a levitical purificatory washing, but signified a spiritual turning away from sins and the entry into a new and purer life. We know that round the person of John there gathered a circle of disciples which survived his death and meets us more than once at a later time (Acts xviii. 25; xix. 3. Clem. Recog. i. 54). At the present time it is a subject of lively discussion whether the still existent sect of the Mandaeans (see MANDAEANS), whose sacred writings are extensively preserved for us, is perhaps the last remnant of a religious society which can be traced back in direct succession to the communities of disciples of John. The religious world of ideas of these writings also, saturated with hellenistic-iranian mysticism, are in this case commonly traced back to the circle of the disciples of John the Baptist. Yet all this is very question able conjecture, and important arguments render not improbable the conclusion that the Mandaean sect is of post-islamic origin and has no kind of historical connection with the early extinct sect of John's disciples. At all events, we shall do well to con fine ourselves to the reliable ancient accounts of John the Baptist and to accept with reserve even the sacramental significance which Josephus (Ant. xviii. 117) ascribes to the baptism of John. As at all events the Christian community regarded Jesus as the fulfiller of the message of John and in a certain sense as the executor of his will, the taking over of the rite of baptism can be interpreted as a Johannine heritage for the primitive com munity. We must, however, be clear that the motives for so tak ing it over are and remain in the end unknown.
The Isis Mysteries were spread over the whole Roman Empire in a form suited for world propaganda, and there is no doubt that the leading ideas here expressed had their root in the ancient Egyptian religion (the cult of Osiris) and have suffered slight modifications by the spirit of Graeco-oriental mysticism. In the cult of Attis and Adonis also we meet with a god who, like Osiris, dies and awakes to life again, and whose fate is lived through in figure by the member of his community. From our knowledge, even though in general it is very scanty and embraces only limited fragments of the variegated piety of the early Empire, the conjecture that the circle of ideas mentioned ex ercised its effect in all kinds of other places besides amounts almost to certainty. When, therefore, in the communities of the Apostle Paul we meet with so kindred an interpretation of Chris tian baptism, we can definitely assume an influence from extra Christian piety. It must only remain questionable whether this sacramental theology was introduced into the Christian com munity directly by baptised pagans, or whether it had already taken hold here and there of "liberal" Greek-speaking Judaism, and so entered into Christianity as a semi-Jewish way of thinking.
The baptism was preceded by a fast, it might be of several days; then the ceremony began on Easter Eve. The following is a description of it in accordance with the statements of Cyril of Jerusalem (circ. 340). The candidates for baptism are led into the vestibule of the baptistry and there drawn up facing west. Then they stretch out their hands to the west and call: "I re nounce thee, Satan, and all thy works and all thy being." Then they turn round and eastwards, as to the land of light, confess the creed. Now they enter the inner room of the baptistry and divest themselves completely of their garments. They are anointed from head to foot with exorcised oil and led to the baptismal tank. Each makes answer to the threefold question, if he believes in Father, Son and Holy Ghost, with the prescribed formula and is submerged at each confession, three times therefore. When he has come up from the tank he is again anointed with holy oil (chrisma) on the forehead, ears, nose and breast, and clothed in a white garment, the outward sign of the purity from sin he has won through the sacrament. At once the procession of candidates enters the church and partakes for the first time of the Eucharist. In Egypt, Italy and Africa, the custom survived till the 5th century of giving to the newly baptised, in addition to the wine, a mixture of milk and honey, as a neophyte communion : ap parently also a custom taken over from the hellenistic Mysteries.
Theological Developments of the 3rd and 4th Centuries. —According to the view of the whole early Church, baptism is a sacrament unconditionally necessary for the Christian : the one and only substitute for it is the baptism of blood of martyrdom; for whoever, even without having received baptism, suffers death for his confession of Christ, will without doubt be reckoned by Christ among His own. But in addition baptism cannot be re peated: only once can a man die in Christ and be born again. In consequence of this a controversy arose in the middle of the 3rd century in Africa, known as the controversy over heretical bap tism, and became of fundamental significance for succeeding ages. After the Decian persecution (A.D. 25o) the sect of the Novatians had separated itself from the Church. Yet when some years were passed, many returned penitently to the Church. In the meanwhile they had received baptism in the sect of the Novatians. The problem now arose for the Carthaginian bishop Cyprian, whether he should reckon this baptism performed by heretics as a real baptism or not. He adopted the standpoint that outside the Church there is no salvation (extra ecclesiam nulla sales) and drew the conclusion that there can be no real sacraments outside the Church. In his opinion, therefore, heretical baptism was a ceremony without significance, and thus, as occasion arose, he baptised the returned heretics afresh.
In Rome the opposite decision in the same question had been reached : the idea of a sacrament was developed more vigorously and regarded as effective quite independently of the worthiness of him who administered it and of the surrounding community. He who has received baptism, even if it be in the circle of heretics, is incorporated into the community of Jesus, and only his severance from the heretical community and his union with the Catholic Church is needed to bring out also the saving effect of the sacrament. Heretical baptism was thus recognised in Rome. For half a century Africa maintained its practice, then the Roman standpoint prevailed, and has ultimately remained till the present day decisive for our church practice. At a later time only did the Roman Catholic Church begin to question, on grounds of form, the correctness of protestant baptisms, and to make use of the safety provision of a "conditional" re-baptism, in the form : "in case thou shouldest not have been baptised, I baptise thee," etc.
The whole early period knows baptism only for adults, who join themselves of their own resolve to the Christian community. Infant baptism appears sporadically towards the end of the second century and was indeed practised also during the following cen turies, yet only as an exception. In contrast to it the custom was widespread rather of postponing the baptism even of adults as long as possible in the prudent calculation that the complete for giveness of sins conferred by baptism might be first undertaken at a time when the person considered that he had the main period of transgression behind him. For the effectiveness for the forgiveness of sins of the sacrament of penance, which alone was still available to one already baptised, was by no means free from all doubt in the belief of the people.