In this manner Luther occupied himself from the summer to the winter, continuing all the while his biblical studies and the composition of his Church-Postills. But he was also preparing to deal a heavy blow at the Cardinal Albert. This prelate had abstained as yet, with great caution, from taking any stringent measures to prevent the spread of Lutheran preaching in his diocese. But he was in want of money. To supply this want, he published a work, giving news of a precious relic, which he had placed for view at Halle, his town, and inviting pilgrimages to see it. A multitude of other rich and wondrous relics had been collected there; not only heaps of bones and entire corpses of saints, with a portion of the body of the patriarch Isaac, but also pieces of the manna, as it had fallen from heaven in the desert, little bits of the burning bush of Moses, jars from the wedding at Cana, and some of the wine into which Jesus there had changed the water, thorns from the Saviour's crown, one of the stones with which Stephen was stoned, and a multitude of other, in all nearly 9,000, relics. Whoever should attend with devotion at the exhibition of these sacred treasures in the Collegiate Church at Halle, and should give a pious alms to the institution, was to receive a 'surpassing' indulgence. The first exhibition of this kind took place about the beginning of September. Albert also had not scrupled to cause one of the priests who wished to marry to be imprisoned, though it was notorious how he himself made up for his celibacy by his loose living.