“Next comes "And the Lord shall shake the desert of Kadesh." This still refers to the spirit of piety. The account in Numbers carefully explains this reference when it tells how the people of Israel came to Kadesh and were suffering from excessive thirst because of the aridity of that place. Moses struck a rock at the Lord's command and suddenly provided an abundance of water for them. In a remarkable way the earth, which lay foul with unwatered dustiness, was irrigated. By this comparison the prophet says that the most obdurate hearts of sinners can be liquefied into waters of wisdom. The example of Kadesh must be reenacted in human hearts. The term desert is often used of places where unfaithful people are known to gather, as the Gospel says: "The voice of one crying in the desert." John could not have preached in the desert where none could hear. Rather, "desert" is used to describe those who had not as yet apprehended the gifts of faith.”

“The people were murmuring because there was no water. Moses merely had said to his people, "Can we bring you forth water out of this rock?" Thus he wavered only slightly, yet for this alone he immediately received the threat that he should not enter into the land of promise, which was at that time the chief of all the promises made to the Jews. When I behold this man asking and not obtaining pardon, when I see him not deemed worthy of forgiveness because of those few words, even in consideration of so many righteous deeds, truly I discern, in the words of the apostle, "the severity of God." I am fully persuaded that these words are true: "If the just man shall scarcely be saved, where shall the ungodly and the sinner appear?"”

“Priests also must take care lest they be insincere, lest they doubt the power of God. If Aaron and Moses (who seemed to waver at the waters of contradiction) did not deserve to enter the Promised Land, does it not stand to reason that we, bent under the burden of sin, shall be far less able to cross the river Jordan and reach Gilgal, the place of circumcision, if we shall cause one of these little ones to sin?”

“"Therefore Moses struck the rock twice with his staff." What does this mean, brethren? I do not think it is without mystery. What does it mean that the rock was not struck once but twice with the staff? The rock was struck a second time because two trees were lifted up for the gibbet of the cross: the one stretched out Christ's sacred hands, the other spread out his sinless body from head to foot.”

“And that He might increase in them this fear, immediately, by the mouth of offence, the rod of His chastisement was revealed, and after the offence the Chastiser gave them no respite, because their servitude was not worthy of His longsuffering. Above their head the rod of justice hung continually, and immediately they committed sin they were chastened, and at the time of their offence they were beaten, and at the entrance of the path of their sins they forthwith received rebuke; for longsuffering teacheth the foolish servant contempt, and in order that that stupid nation, which in the manner of an evil-doing servant, sat in the house of God, might not [learn] contempt, the Chastiser took away longsuffering, especially when they went forth from Egypt. And we must also understand the object of that swift punishment in another way, and that there was not longsuffering as regardeth the correction of their sins; for God the Teacher took the people, like a child, from Egypt their nurse, that He might deliver unto them the doctrine of His knowledge, and might teach them the instruction of His wisdom. But the people, in their ignorance, when instruction had been delivered unto them, forgot it, and they never kept in remembrance the meditation of the commandments of God, and they were frequently punished with severity, so that, if it were only through fear of chastisement, they might lay hold upon the remembrance of instruction. The man who gathered sticks on the Sabbath day was stoned by all the congregation; and the earth opened and swallowed up others who were called by Moses, and who scorned him and came not; and fire went forth suddenly, and burnt up the bodies of others who thought lightly of his priestly office, and who sought honour for themselves; and others, who in the guise of paying honour, brought strange fire out of season, were burnt up by a tongue of fire which went forth from the tabernacle, and they perished; and others, because they asked for flesh and rejected the bread of angels, were tortured by the indigestion which came upon them; and others who went astray as concerning the calf, were pierced through by the swords of the Levites; and others, who were the cause of the revolt at the waters of trial were set apart for destruction; and others who murmured against the Lord perished by fiendish snakes; and likewise they all, because they strove against going into the land of promise, came to an end and were destroyed in the wilderness. To these offences, then, these punishments were united, and together with each act of wickedness a punishment straightway sprang up by its side, so that evil deeds might be suppressed by stripes, and sins by vengeance, and so that the people might be like a child who feareth the teacher who giveth him instruction, and that it might tremble before the Judge who would beat them like a wrongdoing slave.”

“So in the case of one of us, if he leans to either side, whether from vice or ignorance, no slight danger of a fall into sin from vice or ignorance, no slight danger of a fall into sin is incurred, both for himself and those who are led by him. But we must really walk in the king's highway and take care not to turn aside from it either to the right hand or to the left, as the Proverbs say. For such is the case with our passions, and such in this matter is the straight path of the good shepherd, if he is to know properly the souls of his flock, and to guide them according to the methods of a pastoral care which is right and just and be worthy of our true Shepherd.”

“But what does this signify, that after Aaron was dead, the Lord commanded, not the whole people, but Moses alone, who is amongst the priests, to clothe Aaron's son Eleazar with the priest's garments, except that we should understand that priest must consecrate priest, and himself clothe him with the vestments, that is, with priestly virtues; and then, if he has seen that nothing is wanting to him of the priestly garments, and that all things are perfect, should admit him to the sacred altars. For he who is to supplicate for the people ought to be chosen of God and approved by the priests, lest there be anything which might give serious offence in him whose office it is to intercede for the offences of others. For the virtue of a priest must be of no ordinary kind, since he has to guard not only from nearness to greater faults, but even the very least. He must also be prompt to have pity, not recall a promise, restore the fallen, have sympathy with pain, preserve meekness, love piety, repel or keep down anger, must be as it were a trumpet to excite the people to devotion, or to soothe them to tranquillity.”