Tradition tells how the Prophet took {44} his stand on Al Safa, a hill outside Mecca, and summoned the Koreish. They were followed by the Meccan mob, and to the whole assembly Mohammed preached his first public sermon. The truths, indeed, awoke an echo in their hearts; they could not gainsay them. But this was not truth as a cold cinder raked out from the past and from their national consciousness, but truth living, burning,--truth on fire. They had heard of Allah before. Here was a man to whom Allah was a reality, so great a reality that there could be no other god but Him. They would not have denied that there was a life beyond the grave. Here was a man to whom God's universe was an awful fact; who, as he poured forth his invective, seemed to have himself gazed upon the flaming fires of hell; to him there was a world of difference between heaven and hell and the paths that lead to each. Then, like some unexpected cataract, he would burst into tumultuous rhapsodies charged with thrilling words of conviction and fervid aspiration, insisting again on the realities of life, the certainty of the Judgment, the peril of the soul,--the soul of one believer outweighs {45} all earthly kingdoms. They could no more ignore this preaching than ignore the pealing of the thunder. [Sidenote: The Effect on Mecca.] Mecca was stirred to its depths. What! Was this man who had grown up among on them indeed sent by God to overthrow their sacred Kaaba, to tell them that the gods they worshipped were no gods at all, but wood and stone? Their ancestors had worshipped these same gods for centuries before them. Had not they themselves prayed to Uzza and to Lât, and had they not instances of answers to their prayers? Besides, if idolatry were a crime, what became of the prestige of Mecca? Where, indeed, was their own livelihood? Like the silver-smiths of Ephesus they saw the axe laid at the root of their prosperity. Mecca owed its pre-eminence above all the cities of Arabia to its guardianship of the sacred shrine. For that reason, too, it was the one city which no Arab dared attack: its people reaped a great benefit from its central mart and a rich harvest from the pilgrims, besides a heavy tribute from the tribes. It was no wonder, then, that the Prophet's denunciations of their {46} idols, his exposures of the grossness of their worship, lashed the Koreish into fury. Abu Talib, now the head of the clan, expostulated, and sought to bring Mohammed to reason, and begged him to renounce the task he had undertaken, but he was obdurate. 'O, my uncle, if they placed the sun on my right hand and the moon on my left, to force me to renounce my work, verily I would not desist therefrom until God made manifest His Cause, or I perished in the attempt.' There was no persuading a man like that, although it is recorded that in the course of the interview he burst into tears. Something had happened in Mecca which Mecca could not hide.