A little later on the angel explains this passage. There is first a confused discussion as to the work of the Son, and it is not easy to be sure whether the reference is to the Holy Spirit or to Jesus, but finally the following clear statement is given: "The Holy Spirit which is pre-existent, which created all creation, did God make to dwell in the flesh which he willed. Therefore this flesh, in which the Holy Spirit dwelled, served the Spirit well, walking in holiness and purity, and did not in any way defile the spirit. When, therefore, it had lived nobly and purely, and had laboured with the Spirit, and worked with it in every deed, behaving with power and bravery, he chose it as companion with the Holy Spirit; for the conduct of this flesh pleased him, because it was not defiled while it was bearing the Holy Spirit on earth. Therefore he took the Son[[10]] and the glorious angels as counsellors, that this flesh also, having served the Spirit blamelessly, should have some place of sojourn, and not seem to have lost the reward of its service. For all flesh in which the Holy Spirit has dwelt shall receive the reward if it be found undefiled and spotless. You have the explanation of this parable also."
These passages clearly represent God as having a Son who is the pre-existent Spirit. This Spirit is sent into human beings but leaves them if they are guilty of any misconduct. In the case of one man, however, who is not named but is obviously intended to be Jesus, the Spirit found complete obedience. The result was that the Father proposed to the Son, that is the Spirit, and to the counsellors, that is the angels, that this human being or flesh as Hermas calls it, should be exalted and glorified and put on an equality with the Son. This was done, and the implication of the book is that the same opportunity is offered to all others who are willing to follow their Lord. It is interesting to notice that, though it would be an abuse of language, it might be said that Hermas has a doctrine of the Trinity, but that his Trinity does not consist of Father, Son, and Spirit, but of Father, pre-existent Son, that is the Spirit, and adopted Son, that is Jesus. The exact details, however, of the relations subsisting between those three is a question more easily asked than answered, and the next investigator of Hermas will have to consider it very carefully. It is at present only possible to define the problem. As was said above, Hermas seems to imply that the Spirit existed from the beginning alongside of the Father, but he also implies the existence of many other good spirits opposed to the army of demons who people the world. These good spirits seem at times to be identified with angels, and the question will have some day to be discussed afresh of the relation of these spirits to the Spirit who is the Son of God and of both to the angels. Moreover, the question cannot be solved without taking into account the composition of Hermas. Closely connected with this problem is that of the identification of the Son of God with an angel who is sometimes described as "the most glorious angel" and sometimes named as Michael. Did Hermas think that the Spirit who was the Son is identical with Michael, or that Jesus became Michael, or in what way are the facts to be explained? Finally, did Hermas think that Christians became angels at their death?[[11]]
On what book did Hermas base his interpretation of Jesus? There is no proof that he made use of any of our existing gospels, just as it is very doubtful whether 1 Clement was acquainted with any of them.
There is, indeed, in 1 Clement one passage referring to the words of Jesus,[[12]] but it cannot be said that this is a quotation either from Matthew or Luke. It has points of similarity to both, but agrees completely with neither. No theory to explain the facts is convincing, for three are possible. It may be a confused reminiscence of the existing Gospels, or it may be the proof that a harmony was already in existence, or it may be drawn from a document which was used by both Matthew and Luke—in other words, the Q of the critics. Different minds will see different grades of probability in these three hypotheses. But there is no evidence to settle the question.
There is no satisfactory proof that the canonical gospels were known in the Church of Rome until the time of Justin Martyr. If, however, the question be discussed not on the basis of what gospel is quoted by Hermas or Clement, for none of them are by either, but merely on the ground of their doctrinal affinities, the gospel of Mark has the best claim to consideration. According to the other gospels Jesus was the Son of God from his birth, but, though Mark could be otherwise interpreted, the most obvious meaning of the gospel as it stands is that Jesus became Son of God at the baptism when the Spirit descended upon him. It can hardly be merely a coincidence that this gospel is actually attributed by tradition[[13]] to a Church which was at first adoptionist.
Sacramental adoptionist Christianity seems to be the nearest approach to a complete transformation to a mystery religion with no philosophy, which is found in the history of Christianity, but even here the basis is Jewish.
This is plain in its treatment of conduct. It had apparently accepted the sacramental remission of sins in baptism, and there is no trace in this of any allusion to original sin; the sins which are remitted had been committed by the Christian before his baptism, and there is no suggestion of any inheritance of sin. Hermas never contemplated infant baptism. The baptized Christian started with a clean slate, but what would happen to him if he lapsed again into sin? The Epistle to the Hebrews clearly thought that he had no hope of further forgiveness, and Hermas refers very plainly, if not to the Epistle to the Hebrews itself, at least to teaching which it represents. This teaching was, of course, calculated either to maintain a high standard of conduct or else to change the definition of sin. Apparently none of the other mystery religions ever attached this importance to conduct after initiation, but human nature presented some difficulties in the enforcement of the Christian theory. It was found that the baptized frequently, if not always, lapsed into sin, and that the situation complained of by 4 Ezra was repeating itself.[[14]] What was the use of a system which offered men immortality, but only on conditions which no one could fulfil?
Hermas solved the problem by having recourse to another element in Jewish thought. He appealed to the possibility of repentance, and put his solution of the problem into the form of a revelation made to him by an angel—the Shepherd of the book. The revelation which Hermas announces is that there is one repentance, but only one, for those who sin after baptism. If repentance is taken merely as an act of contrition this obviously does little to solve the problem: it is not really sufficient to cover the facts of human nature. But for Hermas repentance is much more than contrition. It consists apparently of cheerful submission to all the unpleasant happenings of life, which are regarded as organised by an angel, specially appointed for the purpose, in order to adapt them to the improvement of sinners. From the general characteristic of the parables it is clear that Hermas did not contemplate the immediate restoration of the penitent, or the immediate elimination of sin. Penitence is for him an unpleasant process of education, and I think he contemplates the probability that it is life-long. Like all education it demands that the pupil shall obey his teacher, and the teacher is in this case the angel of repentance, who arranges life so as to make it educative. It is the beginning of the great Catholic system of penance which it is so difficult to estimate at its full value because of its corruption and exploitation in the Middle Ages. Whether one believes in the existence of an angel of repentance or not, the view that life with all its happenings is an education, which gradually teaches men, if they are willing to accept it, how to cease to be sinful, was a great lesson for the second century, and I do not doubt that it had much to do with producing in the next century a Church which, in spite of persecution, ultimately won the assent of the best part of the Roman world. Though the form in which Hermas presented his teaching was mythological and crude it contained truths which cannot be neglected.
No one can read The Shepherd of Hermas without feeling that it has not been adequately discussed by modern scholarship. It is the key to the proper understanding of Roman Christianity at the beginning of the second century, but to use this key properly it must be subjected to a process of criticism to determine the relations of its constituent parts to one another, and to the contemporary or almost contemporary documents—1 Clement and the Epistle to the Hebrews.
Adoptionist Christianity was not destined to conquer the world, and though Roman Christianity proved to be the surviving form it had first to change much of its character in a manner which can with some degree of picturesque exaggeration be described as conquest by Ephesus.