82. The Lord taught me in the Gospel what leaven is when He said: “Do ye not understand that I said not concerning bread, Beware of the leaven of the Pharisees and Sadducees?” S. Matt. xvi. 11. Then, it is said, they understood that He spake not of bread, but that they should beware of the doctrine of the Pharisees and Sadducees. This leaven, then—that is, the doctrine of the Pharisees and the contentiousness of the Sadducees—the Church hides in her meal, when she softened the hard letter of the Law by a spiritual interpretation, and ground it as it were in the mill of her explanations, bringing out as it were from the husks of the letter the inner secrets of the mysteries, and setting forth the belief in the Resurrection, wherein the mercy of God is proclaimed, and wherein it is believed that the life of those who are dead is restored.