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recopied in the 780s either by Adam, or on Adam's instructions. The Book of Praise contains a prayer giving thanks for the composition of 35 named books. The explanatory note makes it clear that Adam had been given access to Ch'ang-an's imperial library (presumably by the emperor Te-tsung); that these 35 books had been translated by him from their original Syriac into Chinese, and were a small portion of the scriptures which Reuben had brought to Ch'ang-an in 635; and that the translations had been sent to the Tun-huang monastery. The note reads as follows:
"Regarding the list of books, there are altogether 530 religious works of our church of Syria (Ta-ch'in), and they are all on patra leaves in the Syriac language. In the ninth Cheng-kuan year [635] of the emperor T'ai-tsung of the Tang bishop Reuben (A-lo-pen) came to China and presented a petition to the emperor in his native language. Fang Hsuan-ling and Wei Cheng made known the interpretation of the words of the petition. Later by imperial order bishop Adam (Ching-ching) of this church translated the above thirty and more rolls of books. The majority are on patra leaves or on leather in wrappers, and have still not been translated.'
Among the 35 books listed are four of which versions have been recovered from Tun-huang, the Book of the Secret of Peace and Joy, the Book of the Origin of Origins, the Hymn in Adoration of the Holy Trinity, and the Hymn in Adoration of the Transfiguration of Our Lord. Now if these books are, as the note to the Book of Praise implies, seventh-century works connected with Reuben, 'Christianity' should be rendered by the term 'teaching of the scriptures', and be associated with Persia, not Syria. Instead, notes in the manuscripts of the Hymn in Adoration of the Transfiguration of Our Lord and the Book of the Origin of Origins state that they were written in the Sha-chou Ta-ch'in ssu, the 'Sha-chou Syrian monastery', implying that the notes, at least, were added after 745. Furthermore, in the titles of three of these four works, we find that the term Ta-ch'in ching-chiao, the 'Syrian brilliant teaching', has been added. It does not occur in the titles as given in the Book of Praise. In the case of the fourth book, the Book of the Secret of Peace and Joy, the title remains as given in the Book of Praise, but the term ching-chiao, ‘brilliant teaching' occurs three times in the text. All four manuscripts have been copied (or at