Nevertheless, the greater part of the religious system of Babylonia had been transported into Assyria. Along with the Babylonian deities had come the Babylonian scriptures. These were divided into two great collections or volumes. The first, and oldest, was a collection of exorcisms and magical texts, by the use of which, it was believed, the spirits of evil could be driven away, and the spirits of good induced to visit the reciter. When, however, certain independent deities began to emerge from among the multitudinous 'spirits' of the primitive Accadian creed, hymns were composed in their honour, and these hymns were eventually collected together, and, like the Rig-Veda of India, became a second sacred book. After the Accadians had been supplanted by the Semites, the Accadian language, in which the hymns were originally written, was provided with a Semitic translation; but it was still considered necessary to recite the exact words of the original, since the words themselves were sacred, and any mistake in their pronunciation would invalidate the religious service in which they were employed. Some of the incantations embodied in the collection of exorcisms must have been introduced into it subsequently to the compilation of the sacred hymns, since the latter are found inserted in them. From this it would appear that the older collection continued to receive additions for a long while after the younger collection—that of the sacred hymns—had been put together and invested with a sacred character. This could not have been till after the beginning of the Semitic period, since there are a few hymns which do not seem to have had any Accadian originals. If we may compare the two collections with our own religious literature, we may say that the collection of hymns corresponded more to our Bible, that of exorcisms to our Prayer Book.