I. The contents of the faith of the disciples,[72] and the common proclamation which united them, may be comprised in the following propositions. Jesus of Nazareth is the Messiah promised by the prophets. Jesus after his death is by the Divine awakening raised to the right hand of God, and will soon return to set up his kingdom visibly upon the earth. He who believes in Jesus, and has been received into the community of the disciples of Jesus, who, in virtue of a sincere change of mind, calls on God as Father, and lives according to the commandments of Jesus, is a saint of God, and as such can be certain of the sin-forgiving grace of God, and of a share in the future glory, that is, of redemption.[73]
A community of Christian believers was formed within the Jewish national community. By its organisation, the close brotherly union of its members, it bore witness to the impression which the Person of Jesus had made on it, and drew from faith in Jesus and hope of his return, the assurance of eternal life, the power of believing in God the Father and of fulfilling the lofty moral and social commands which Jesus had set forth. They knew themselves to be the true Israel of the Messianic time (see § 1), and for that very reason lived with all their thoughts and feelings in the future. Hence the Apocalyptic hopes which in manifold types were current in the Judaism of the time, and which Jesus had not demolished, continued to a great extent in force (see § 4). One guarantee for their fulfilment was supposed to be possessed in the various manifestations of the Spirit,[74] which were displayed in the members of the new communities at their entrance, with which an act of baptism seems to have been united from the very first[75], and in their gatherings. They were a guarantee that believers really were the εκκλησια του θεου, those called to be saints, and, as such, kings and priests unto God[76] for whom the world, death and devil are overcome, although they still rule the course of the world. The confession of the God of Israel as the Father of Jesus, and of Jesus as Christ and Lord[77] was sealed by the testimony of the possession of the Spirit, which as Spirit of God assured every individual of his call to the kingdom, united him personally with God himself and became to him the pledge of future glory[78].
2. As the Kingdom of God which was announced had not yet visibly appeared, as the appeal to the Spirit could not be separated from the appeal to Jesus as Messiah, and as there was actually nothing possessed but the reality of the Person of Jesus, so in preaching all stress must necessarily fall on this Person. To believe in him was the decisive fundamental requirement, and, at first, under the presupposition of the religion of Abraham and the Prophets, the sure guarantee of salvation. It is not surprising then to find that in the earliest Christian preaching Jesus Christ comes before us as frequently as the Kingdom of God in the preaching of Jesus himself. The image of Jesus, and the power which proceeded from it, were the things which were really possessed. Whatever was expected was expected only from Jesus the exalted and returning one. The proclamation that the Kingdom of heaven is at hand must therefore become the proclamation that Jesus is the Christ, and that in him the revelation of God is complete. He who lays hold of Jesus lays hold in him of the grace of God, and of a full salvation. We cannot, however, call this in itself a displacement: but as soon as the proclamation that Jesus is the Christ ceased to be made with the same emphasis and the same meaning that it had in his own preaching, and what sort of blessings they were which he brought, not only was a displacement inevitable, but even a dispossession. But every dispossession requires the given forms to be filled with new contents. Simple as was the pure tradition of the confession: "Jesus is the Christ," the task of rightly appropriating and handing down entire the peculiar contents which Jesus had given to his self-witnessing and preaching was nevertheless great, and in its limit uncertain. Even the Jewish Christian could perform this task only according to the measure of his spiritual understanding and the strength of his religious life. Moreover, the external position of the first communities in the midst of contemporaries who had crucified and rejected Jesus, compelled them to prove, as their main duty, that Jesus really was the Messiah who was promised. Consequently, everything united to bring the first communities to the conviction that the proclamation of the Gospel with which they were entrusted, resolved itself into the proclamation that Jesus is the Christ. The διδασκειν τηρειν παντα 'οτα ενετειλατο 'ο Ιησους (teaching to observe all that Jesus had commanded), a thing of heart and life, could not lead to reflection in the same degree, as the διδασκειν 'οτι ουτος εστιν 'ο χριστος του θεου (teaching that this is the Christ of God): for a community which possesses the Spirit does not reflect on whether its conception is right, but, especially a missionary community, on what the certainty of its faith rests.
The proclamation of Jesus as the Christ, though rooted entirely in the Old Testament, took its start from the exaltation of Jesus, which again resulted from his suffering and death. The proof that the entire Old Testament points to him, and that his person, his deeds and his destiny are the actual and precise fulfilment of the Old Testament predictions, was the foremost interest of believers, so far as they at all looked backwards. This proof was not used in the first place for the purpose of making the meaning and value of the Messianic work of Jesus more intelligible, of which it did not seem to be in much need, but to confirm the Messiahship of Jesus. Still, points of view for contemplating the Person and work of Jesus could not fail to be got from the words of the Prophets. The fundamental conception of Jesus dominating everything was, according to the Old Testament, that God had chosen him and through him the Church. God had chosen him and made him to be both Lord and Christ. He had made over to him the work of setting up the Kingdom, and had led him through death and resurrection to a supra-mundane position of sovereignty, in which he would soon visibly appear and bring about the end. The hope of Christ's speedy return was the most important article in the "Christology," inasmuch as his work was regarded as only reaching its conclusion by that return. It was the most difficult, inasmuch as the Old Testament contained nothing of a second advent of Messiah. Belief in the second advent became the specific Christian belief.
But the searching in the scriptures of the Old Testament, that is, in the prophetic texts, had already, in estimating the Person and dignity of Christ, given an important impulse towards transcending the frame-work of the idea of the theocracy completed solely in and for Israel. Moreover, belief in the exaltation of Christ to the right hand of God, caused men to form a corresponding idea of the beginning of his existence. The missionary work among the Gentiles, so soon begun and so rich in results, threw a new light on the range of Christ's purpose and work, and led to the consideration of its significance for the whole human race. Finally, the self-testimony of Jesus summoned them to ponder his relation to God the Father, with the presuppositions of that relation, and to give it expression in intelligible statements. Speculation had already begun on these four points in the Apostolic age, and had resulted in very different utterances as to the Person and dignity of Jesus (§ 4).[79]
3. Since Jesus had appeared and was believed on as the Messiah promised by the Prophets, the aim and contents of his mission seemed already to be therewith stated with sufficient clearness. Further, as the work of Christ was not yet completed, the view of those contemplating it was, above all, turned to the future. But in virtue of express words of Jesus, and in the consciousness of having received the Spirit of God, one was already certain of the forgiveness of sin dispensed by God, of righteousness before him, of the full knowledge of the Divine will, and of the call to the future Kingdom as a present possession. In the procuring of these blessings not a few perceived with certainty the results of the first advent of Messiah, that is, his work. This work might be seen in the whole activity of Christ. But as the forgiveness of sins might be conceived as the blessing of salvation which included with certainty every other blessing, as Jesus had put his death in express relation with this blessing, and as the fact of this death so mysterious and offensive required a special explanation, there appeared in the foreground from the very beginning the confession, in 1 Cor. XV. 3: παρεδωξα 'υμιν εν πρωτοις, 'ο και παρελαβον, 'οτι χριστος απεθανεν 'υπερ των 'αμαρτιον 'ημον. "I delivered unto you first of all that which I also received, that Christ died for our sins." Not only Paul, for whom, in virtue of his special reflections and experiences, the cross of Christ had become the central point of all knowledge, but also the majority of believers, must have regarded the preaching of the death of the Lord as an essential article in the preaching of Christ[80], seeing that, as a rule, they placed it somehow under the aspect of a sacrifice offered to God. Still, there were very different conceptions of the value of the death as a means of procuring salvation, and there may have been many who were satisfied with basing its necessity on the fact that it had been predicted, (απεθανεν κατα τας γραφας: "he died for our sins according to the scriptures"), while their real religious interests were entirely centered in the future glory to be procured by Christ. But it must have been of greater significance for the following period that, from the first, a short account of the destiny of Jesus lay at the basis of all preaching about him (see a part of this in 1 Cor. XV. 1-11). Those articles in which the identity of the Christ who had appeared with the Christ who had been promised stood out with special clearness, must have been taken up into this report, as well as those which transcended the common expectations of Messiah, which for that very reason appeared of special importance, viz., his death and resurrection. In putting together this report, there was no intention of describing the "work" of Christ. But after the interest which occasioned it had been obscured, and had given place to other interests, the customary preaching of those articles must have led men to see in them Christ's real performance, his "work."[81]
4. The firm confidence of the disciples in Jesus was rooted in the belief that he did not abide in death, but was raised by God. That Christ had risen was, in virtue of what they had experienced in him, certainly only after they had seen him, just as sure as the fact of his death, and became the main article of their preaching about him.[82] But in the message of the risen Lord was contained not only the conviction that he lives again, and now lives for ever, but also the assurance that his people will rise in like manner and live eternally. Consequently, the resurrection of Jesus became the sure pledge of the resurrection of all believers, that is of their real personal resurrection. No one at the beginning thought of a mere immortality of the spirit, not even those who assumed the perishableness of man's sensuous nature. In conformity with the uncertainty which yet adhered to the idea of resurrection in Jewish hopes and speculations, the concrete notions of it in the Christian communities were also fluctuating. But this could not affect the certainty of the conviction that the Lord would raise his people from death. This conviction, whose reverse side is the fear of that God who casts into hell, has become the mightiest power through which the Gospel has won humanity.[83]
5. After the appearance of Paul, the earliest communities were greatly exercised by the question as to how believers obtain the righteousness which they possess, and what significance a precise observance of the law of the Fathers may have in connection with it. While some would hear of no change in the regulations and conceptions which had hitherto existed, and regarded the bestowal of righteousness by God as possible only on condition of a strict observance of the law, others taught that Jesus as Messiah had procured righteousness for his people, had fulfilled the law once for all, and had founded a new covenant, either in opposition to the old, or as a stage above it. Paul especially saw in the death of Christ the end of the law, and deduced righteousness solely from faith in Christ, and sought to prove from the Old Testament itself, by means of historical speculation, the merely temporary validity of the law and therewith the abrogation of the Old Testament religion. Others, and this view, which is not everywhere to be explained by Alexandrian influences (see above p. 72 f.), is not foreign to Paul, distinguished between spirit and letter in the Mosaic law, giving to everything a spiritual significance, and in this sense holding that the whole law as νομος πνευματικος was binding. The question whether righteousness comes from the works of the law or from faith, was displaced by this conception, and therefore remained in its deepest grounds unsolved, or was decided in the sense of a spiritualised legalism. But the detachment of Christianity from the political forms of the Jewish religion, and from sacrificial worship, was also completed by this conception, although it was regarded as identical with the Old Testament religion rightly understood. The surprising results of the direct mission to the Gentiles would seem to have first called forth those controversies (but see Stephen) and given them the highest significance. The fact that one section of Jewish Christians, and even some of the Apostles, at length recognised the right of the Gentile Christians to be Christians without first becoming Jews, is the clearest proof that what was above all prized was faith in Christ and surrender to him as the saviour. In agreeing to the direct mission to the Gentiles the earliest Christians, while they themselves observed the law, broke up the national religion of Israel, and gave expression to the conviction that Jesus was not only the Messiah of his people, but the redeemer of humanity.[84] The establishment of the universal character of the Gospel, that is, of Christianity as a religion for the world, became now, however, a problem, the solution of which, as given by Paul, but few were able to understand or make their own.