With the spread of the Gospel among the Gentiles, the increasing hostility between Christians and Jews, the dismemberment of the Jewish nationality, and the overthrow of Jewish institutions to which the Hebrew Christians had maintained a certain degree of attachment, dependence upon the Jewish ritual was loosened, and the worship of the Church came under the influence of Hellenic systems and traditions. Greek philosophy and Greek art, although both in decadence, were dominant in the intellectual life of the East, and it was impossible that the doctrine, worship, and government of the Church should not be gradually leavened by them. St. Paul wrote in the Greek language; the earliest liturgies are in Greek. The sentiment of prayer and praise was, of course, Hebraic; the psalms formed the basis of all lyric expression, and the hymns and liturgies were to a large extent colored by their phraseology and spirit. The shapeliness and flexibility of Greek art, the inward fervor of Hebrew aspiration, the love of ceremonial and symbolism, which was not confined to any single nation but was a universal characteristic of the time, all contributed to build up the composite and imposing structure of the later worship of the Eastern and Western churches.
The singing of psalms formed a part of the Christian worship from the beginning, and certain special psalms were early appointed for particular days and occasions. At what time hymns of contemporary origin were added we have no means of knowing. Evidently during the life of St. Paul, for we find him encouraging the Ephesians and Colossians to the use of “psalms, hymns, and spiritual songs.”30 To be sure he is not specifically alluding to public worship in these exhortations (in the first instance “speaking to yourselves” and “singing and making melody in your hearts,” in the second “teaching and admonishing one another”), but it is hardly to be supposed that the spiritual exercise of which he speaks would be excluded from the religious services which at that time were of daily observance. The injunction to teach and admonish by means of songs also agrees with other evidences that a prime motive for hymn singing in many of the churches was instruction in the doctrines of the faith. It would appear that among the early Christians, as with the Greeks and other ancient nations, moral precepts and instruction in religious mysteries were often thrown into poetic and musical form, as, being by this means more impressive and more easily remembered.
It is to be noticed that St. Paul, in each of the passages cited above, alludes to religious songs under three distinct terms, viz.: ψαλμοί, ὕμνοι, and ᾠδαὶ πνευματικαί. The usual supposition is that the terms are not synonymous, that they refer to a threefold classification of the songs of the early Church into: 1, the ancient Hebrew psalms properly so called; 2, hymns taken from the Old Testament and not included in the psalter and since called canticles, such as the thanksgiving of Hannah, the song of Moses, the Psalm of the Three Children from the continuation of the Book of Daniel, the vision of Habakkuk, etc.; and, 3, songs composed by the Christians themselves. The last of these three classes points us to the birth time of Christian hymnody. The lyric inspiration, which has never failed from that day to this, began to move the instant the proselyting work of the Church began. In the freedom and informality of the religious assembly as it existed among the Hellenic Christians, it became the practice for the believers to contribute impassioned outbursts, which might be called songs in a rudimentary state. In moments of highly charged devotional ecstasy this spontaneous utterance took the form of broken, incoherent, unintelligible ejaculations, probably in cadenced, half-rhythmic tone, expressive of rapture and mystical illumination. This was the “glossolalia,” or “gift of tongues” alluded to by St. Paul in the first epistle to the Corinthians as a practice to be approved, under certain limitations, as edifying to the believers.31
Dr. Schaff defines the gift of tongues as “an utterance proceeding from a state of unconscious ecstasy in the speaker, and unintelligible to the hearer unless interpreted. The speaking with tongues is an involuntary, psalm-like prayer or song uttered from a spiritual trance, in a peculiar language inspired by the Holy Spirit. The soul is almost entirely passive, an instrument on which the Spirit plays his heavenly melodies.” “It is emotional rather than intellectual, the language of excited imagination, not of cool reflection.”32 St. Paul was himself an adept in this singular form of worship, as he himself declares in 1 Cor. xiv. 18; but with his habitual coolness of judgment he warns the excitable Corinthian Christians that sober instruction is more profitable, that the proper end of all utterance in common public worship is edification, and enjoins as an effective restraint that “if any man speaketh in a tongue, let one interpret; but if there be no interpreter, let him keep silence in the Church; and let him speak to himself and to God.”33 With the regulation of the worship in stated liturgic form this extemporaneous ebullition of feeling was done away, but if it was analogous, as it probably was, to the practice so common in Oriental vocal music, both ancient and modern, of delivering long wordless tonal flourishes as an expression of joy, then it has in a certain sense survived in the “jubilations” of the Catholic liturgical chant, which in the early Middle Age were more extended than now. Chappell finds traces of a practice somewhat similar to the “jubilations” existing in ancient Egypt. “This practice of carolling or singing without words, like birds, to the gods, was copied by the Greeks, who seem to have carolled on four vowels. The vowels had probably, in both cases, some recognized meaning attached to them, as substitutes for certain words of praise – as was the case when the custom was transferred to the Western Church.”34 This may or may not throw light upon the obscure nature of the glossolalia, but it is not to be supposed that the Corinthian Christians invented this custom, since we find traces of it in the worship of the ancient pagan nations; and so far as it was the unrestrained outburst of emotion, it must have been to some extent musical, and only needed regulation and the application of a definite key-system to become, like the mediaeval Sequence under somewhat similar conditions, an established order of sacred song.
Out of a musical impulse, of which the glossolalia was one of many tokens, united with the spirit of prophecy or instruction, grew the hymns of the infant Church, dim outlines of which begin to appear in the twilight of this obscure period. The worshipers of Christ could not remain content with the Hebrew psalms, for, in spite of their inspiriting and edifying character, they were not concerned with the facts on which the new faith was based, except as they might be interpreted as prefiguring the later dispensation. Hymns were required in which Christ was directly celebrated, and the apprehension of his infinite gifts embodied in language which would both fortify the believers and act as a converting agency. It would be contrary to all analogy and to the universal facts of human nature if such were not the case, and we may suppose that a Christian folk-song, such as the post-apostolic age reveals to us, began to appear in the first century. Some scholars believe that certain of these primitive hymns, or fragments of them, are embalmed in the Epistles of St. Paul and the Book of the Revelation.35 The magnificent description of the worship of God and the Lamb in the Apocalypse has been supposed by some to have been suggested by the manner of worship, already become liturgical, in the Eastern churches. Certainly there is a manifest resemblance between the picture of one sitting upon the throne with the twenty-four elders and a multitude of angels surrounding him, as set forth in the Apocalypse, and the account given in the second book of the Constitutions of the Apostles of the throne of the bishop in the middle of the church edifice, with the presbyters and deacons on each side and the laity beyond. In this second book of the Constitutions, belonging, of course, to a later date than