Psalms 49:12

XX . Now the law is the decalogue, which the Lord promulgated to them with an audible voice, before the people made that calf which represented the Egyptian Apis. And the law is righteous, and therefore is it called the law, because judgments are thence made according to the law of nature, which the followers of Simon abuse, supposing they shall not be judged thereby, and so shall escape punishment. This law is good, holy, and such as lays no compulsion in things positive. For He says: “If thou wilt make me an altar, thou shalt make it of earth.” It does not say, “Make one,” but, “If thou wilt make.” It does not impose a necessity, but gives leave to their own free liberty. For God does not stand in need of sacrifices, being by nature above all want. …

And who is so foolish as to suppose that the things offered to God are needed by Him for some uses of His own? Divine Scripture in many places explodes this idea. Not to be wearisome, suffice it to quote this brief saying from a psalm: “I have said to the Lord, Thou art my God: for Thou needest not my goodness.” We must believe, then, that God has no need, not only of cattle, or any other earthly and material thing, but even of man’s righteousness, and that whatever right worship is paid to God profits not Him, but man. For no man would say he did a benefit to a fountain by drinking, or to the light by seeing. …

19. Who can explain, who expound that which is said to Him in another Psalm, “For my goods Thou needest not”? He hath said that He needeth not from us any necessary thing. “If I shall be hungry, I will not tell thee” ( ver. 12 ). He that keepeth Israel shall neither hunger nor thirst, nor be weary, nor fall asleep. But, lo! according to thy carnality I speak: because thou wilt suffer hunger when thou hast not eaten, perhaps thou thinkest even God doth hunger that He may eat. Even though He shall be hungry, He telleth not thee: all things are before Him, whence He will He taketh what is needful for Him. These words are said to convince little understanding; not that God hath declared His hunger. Though for our sake this God of gods deigned even to hunger. …

But to His disciples not so, but He puts them in mind of His signs, saying on this wise, “Do ye not yet remember the five loaves of the five thousand, and how many baskets ye took up?” Not so however with these, but He reminds them of our common infirmity, and signifies them at any rate to be of the number of the infirm; who did not so much as know the Scriptures, but making light of the rest of virtue, laid all the stress on their sacrifices; which thing He is also earnestly intimating unto them, when He sets down in brief what had been affirmed by all the prophets,saying, “Learn ye what that meaneth, I will have mercy, and not sacrifice.”

And this He saith unto them in irony; as when He said, “Behold, Adam is become as one of us;”and again, “If I were hungry, I would not tell thee.” For that no man on earth was righteous, Paul declared, saying, “For all have sinned, and come short of the glory of God.” And by this too the others were comforted, I mean, the guests. “Why, I am so far,” saith He, “from loathing sinners, that even for their sakes only am I come.” Then, lest He should make them more careless, He staid not at the word “sinners,” but added, “unto repentance.” “For I am not come that they should continue sinners, but that they should alter, and amend.”