58
Tibetans and were preparing to advance over the Pamirs to confront the Arabs. The stage was being set for the decisive clash between the two rival empires in 751, which resulted in an Arab victory over the Chinese forces at the battle of the Talas. Indeed, it is possible that Hsüan-tsung, by showing favour to the Nestorians in China at this time, was attempting to bid for the support of Christians generally in the territories ruled by the Moslem Arabs. Men of affairs like Chi-ho, coming and going between China and Mesopotamia, could supply useful information at the very least, and might even be able to foment a Christian insurrection against Moslem rule, if properly encouraged.
At any rate, by 745 the emperor and his advisers were no doubt well aware of the extent of the territories under Arab rule, and knew that Persia, the homeland of the Nestorian missionaries, was not the same as Syria, Ta-ch'in, where Christianity originated. It was more logical to connect the 'teaching of the scriptures' with the country of its origin. For the Nestorians, the new name had advantages, too. Like the Nestorian monasteries, the fire-temples of the Zoroastrians in China were also called 'Persian monasteries', and the new term distinguished Persian Christians from Persian fire-worshippers. It also reflected the true importance of the Syrian Christians in the Nestorian church. Before the collapse of the Sassanian empire, it was reasonable to speak of a 'Persian' church. In fact, from earliest times the Syrians of northern Mesopotamia dominated the Nestorian church, and now that Persians and Syrians were alike subject to Arab rule it was closer to the truth to label the Nestorian church Syrian rather than Persian.
A New Image: the 'Syrian Brilliant Teaching'
It is clear from Hsüan-tsung's decree of 745 that the Nestorian identity found on the Sian tablet, the 'Syrian brilliant teaching', was adopted later than 745. Although the Nestorians' 'Persian monasteries' were now to be renamed 'Syrian monasteries' there is no hint in the decree that the familiar expression 'teaching of the scriptures' was to be replaced. Some time after 745, but no later than 781, when the Sian tablet was set up, the Nestorians decided to replace the uninteresting term 'teaching of the scriptures' with the striking, original, and far more evocative expression 'brilliant teaching'. They chose a term which, besides its general appropriateness as a term for Christianity, further distinguished the Christians from the practitioners of other faiths. Buddhists, Taoists, Manicheans, Zoroastrians, and Christians