The pith of the legend underlies the bark; what says the Koran? Nebi Salih came as a “brother,”[120] and said, “O, my people, worship God. Ye have no God but Him.[121] There has come to you an evident sign from your Lord.[122] ... And remember how He made you vice-regents after ’Ad, and stablished you in the earth ... and remember the benefits of God.[123] Said the chiefs of those who were big with pride _from amongst his people_ (Pharisees or Jews from Damascus?) to those who believed amongst them: Do ye know that Salih is sent from his Lord? (_i. e._, his Lord is not your true God). They said, We do believe in that with which He is sent, (gospel?) “Said those who were big with pride, Verily, in what ye do believe we disbelieve.” The passage is again significant: “And he turned away from them (back to Damascus?) and said, O, my people, I did preach unto you the message of my Lord,[124] and I gave you good advice, but ye love not sincere advisers.” Does not this story have points of contact with what might have been the experiences of a man like Paul among such a people? The fact that there is a so-called tomb of Nebi Salih at El Watiyeh (Palmer) does not weigh much for or against any theory as to the identity of the prophet. Arabia has tombs of Job on the Upper Euphrates, of Eve at Jiddah, of Cain at Aden, and of other “prophets” where there is a demand for it. But it is interesting to learn from the learned author of _The Desert of the Exodus_: “The origin and history of Nebi Salih is quite unknown to the present Bedouin inhabitants, but they nevertheless regard him with more national veneration than even Moses himself.” If revered more than Moses, why not was he later than Moses—greater than Moses—even _Saul of Tarsus_? Whether this theory be only far-fetched or whether it has confirmation in the early spread of Christianity in North Arabia the sequel may show. Historical Christianity in Arabia had two centres, so that the study of its early rise and progress takes us first to the tribes furthest north, in the kingdoms of Hirah and Ghassan and then to fertile Yemen and Nejran.