In July 1215, with the approbation of Bishop Foulques of Toulouse, Dominic ordered his followers into an institutional life. Its purpose was revolutionary in the pastoral ministry of the Catholic Church. These priests were organized and well trained in religious studies. Dominic needed a framework—a rule—to organize these components. The Rule of St. Augustine was an obvious choice for the Dominican Order, according to Dominic's successor, Jordan of Saxony, because it lent itself to the "salvation of souls through preaching". By this choice, however, the Dominican brothers designated themselves not monks, but canons-regular. They could practice ministry and common life while existing in individual poverty.