The treaty was short-lived. It was soon plain that Judaism and Islam could not go hand in hand. The Prophet rested his claims on the predictions of the Jewish Scriptures: yet he did not profess to be the Messiah;--the Messiah, he held, had already appeared in the person of Jesus, and had been rejected. He was himself another and a greater prophet also foretold in their Book. The Jews, he said, knew this; they recognized in him the promised Prophet 'as they recognized their own sons,' yet, out of jealousy and spite, {73} from wilful blindness, they rejected him, as they had rejected their own Messiah. This was the position which Mohammed held. How could the Jews accept it? In a body, with but few exceptions, they rejected it. Henceforth, Islam and Judaism were no more allies. The suras suddenly changed their tone; each new revelation poured forth fresh invectives upon Israel. Jewish customs were discarded, and 'the faithful' were bidden to turn no longer to Jerusalem but to Mecca for their prayers. The rupture was a severe blow to Mohammed at the time; but he consoled himself, inasmuch as the Jews had always been a stubborn race, given to rejecting their prophets. [Sidenote: The Heathen.] The first impetus had begun to expend itself. Progress was slow, though in Medina converts were still many. Indifference dulled the mass of the people; rival chieftains asserted their claims over the clans. Mohammed and his followers were often in want. Mecca, too, had settled down to its life without a regret for the one man singled out as the chosen of God. The position was not consistent with the dignity of the Prophet of God. {74} Circumstances converged to show that in force lay the only remedy. Mecca must be punished, and Medina should learn that the hand of God is with His Prophet. [Sidenote: Marauding Expeditions.] The commerce of Mecca depended very largely upon the caravan expeditions which travelled twice a year to Syria, passing on their way along the Red Sea shore, not far from Medina. To break up and plunder the caravan was not a difficult and certainly was an effective way of punishing Mecca, and, incidentally, of replenishing the dwindling resources of the 'brotherhood' of believers. Some of them did, indeed, revolt against such a step, remembering how they had been taught more merciful practices at Mecca, but Mohammed was ready for them with a new revelation, reminding them that to punish those who had driven out God's Prophet was to defend the honour of God.