In the cohesion in a foreign land of this people that cannot keep together as a nation, and in their extraordinary commercial acuteness, lies the strength of the Jews. They grew wealthy by their industry and thrift, until they were in a position to purchase those privileges which in Christendom are the birth-right of every Christian. Their numbers, too, made it difficult in Spain to treat them with contumely; for upon the reasoned estimate of Amador de los Rios[39] there were close upon a million Jews in Castile at the end of the thirteenth century. They formed by their solidarity--as they always do--an _imperium in imperio_, a state of their own within the state; they had their own language and customs; they were governed by their own laws, which were enforced by their Rabbis and chiefs, and they pursued their own religion unmolested, for even the observation of the Sabbath was respected by the Castilians. Thus they came to create for themselves in a foreign country a simulacrum of their own native land. It is true that they were afflicted from time to time by sporadic, local persecutions; but in the main they enjoyed a tolerance and religious liberty which the poor harried Albigenses beyond the Pyrenees might well have envied. For the Church, which had already established the Inquisition, was very far--for reasons that shall be considered in the next chapter--from instigating any persecution of the Children of Israel. Thus, Honorius III, whilst carrying forward the policy of Innocent III, and enjoining the extirpation of heretics in Southern France and elsewhere, confirmed (November 7, 1217) the privileges accorded to the Jews by his predecessors upon the throne of St. Peter. These were that no Jew should be constrained to receive baptism; that should he incline to embrace the Christian Faith he must be received in it with love and benevolence; that his feasts and religious ceremonies must be respected by Christians; that the whipping or stoning of Jews be forbidden and punished; that their burial-places be held sacred. And when King Ferdinand III--afterwards canonized--wrested Seville from the Moors (1224), he made over one of the best districts of the city to the Jews, and gave them the four mosques contained in it that they might convert them into synagogues. The only restraint placed upon them by the law was that they must refrain, under pain of death, from attempting to proselytize among Christians, and that they must show respect for the Christian religion.