Hebrews 8:10

having bestowed on us the truly great, divine, and inalienable inheritance of the Father, deifying man by heavenly teaching, putting His laws into our minds, and writing them on our hearts. What laws does He inscribe? “That all shall know God, from small to great;” and, “I will be merciful to them,” says God, “and will not remember their sins.” Let us receive the laws of life, let us comply with God’s expostulations; let us become acquainted with Him, that He may be gracious. And though God needs nothing let us render to Him the grateful recompense of a thankful heart and of piety, as a kind of house-rent for our dwelling here below.

Then he adds: “Worship this God not as the Greeks,”, signifying plainly, that the excellent among the Greeks worshipped the same God as we, but that they had not learned by perfect knowledge that which was delivered by the Son. “Do not then worship,” he did not say, the God whom the Greeks worship, but “as the Greeks,”, changing the manner of the worship of God, not announcing another God. What, then, the expression “not as the Greeks” means, Peter himself shall explain, as he adds: “Since they are carried away by ignorance, and know not God” (as we do, according to the perfect knowledge); “but giving shape to the things of which He gave them the power for use, stocks and stones, brass and iron, gold and silver, matter; and setting up the things which are slaves for use and possession, worship them. …

Therefore prophetic utterances of three kinds are to be found; forasmuch as there are some relating to the earthly Jerusalem, some to the heavenly, and some to both. I think it proper to prove what I say by examples. The prophet Nathan was sent to convict king David of heinous sin, and predict to him what future evils should be consequent on it. Who can question that this and the like pertain to the terrestrial city, whether publicly, that is, for the safety or help of the people, or privately, when there are given forth for each one’s private good divine utterances whereby something of the future may be known for the use of temporal life? But where we read, “Behold, the days come, saith the Lord, that I will make for the house of Israel, and for the house of Judah, a new testament: not according to the testament that I settled for their fathers in the day when I laid hold of their hand …

And this one may perceive was the case, not of the saints in the Old Testament only, but also of those in the New. For neither to the apostles did God give anything in writing, but instead of written words He promised that He would give them the grace of the Spirit: for “He,” saith our Lord, “shall bring all things to your remembrance.” And that thou mayest learn that this was far better, hear what He saith by the Prophet: “I will make a new covenant with you, putting my laws into their mind, and in their heart I will write them,” and, “they shall be all taught of God.” And Paul too, pointing out the same superiority, said, that they had received a law “not in tables of stone, but in fleshy tables of the heart.”

What need was there then of another priesthood? “For the priesthood being changed, there is of necessity a change of the law also.” But if there must be another priest, or rather another priesthood, there must needs be also another law. This is for those who say, What need was there of a new Covenant? For he could indeed have alleged a testimony from prophecy also. “This is the covenant which I made with your fathers” [&c.]. ( c. viii. 10 .) But for the present he contends on the ground of the priesthood. And observe, how he says this from the first. He said, “According to the order of Melchisedec.” By this he excluded the order of Aaron. For he would not have said “After the order of Melchisedec,” if the other had been better. …

[5.] ( Ver. 10 ) “For this,” he says, “is the covenant that I will make with the house of Israel after those days, saith the Lord; I will put My laws into their mind, and write them in their hearts, and I will be to them a God, and they shall be to Me a people.” Thus He says this concerning the New [covenant] because His words are “not according to the covenant which I covenanted.”

24. This is why the new was substituted for the old, why He Who suffered was for suffering recalled to life, why each property of His, Who was above us, was interchanged with each of ours, why the new mystery took place of the dispensation, due to loving kindness which deals with him who fell through disobedience. This is the reason for the generation and the virgin, for the manger and Bethlehem; the generation on behalf of the creation, the virgin on behalf of the woman, Bethlehem because of Eden, the manger because of the garden, small and visible things on behalf of great and hidden things. This is why the angels glorified first the heavenly, then the earthly, why the shepherds saw the glory over the Lamb and the Shepherd, why the star led the Magi to worship and offer gifts, in order that idolatry might be destroyed. …

When our Lord Jesus Christ, beloved, was preaching the gospel of the Kingdom, and was healing divers sicknesses through the whole of Galilee, the fame of His mighty works had spread into all Syria: large crowds too from all parts of Judæa were flocking to the heavenly Physician. For as human ignorance is slow in believing what it does not see, and in hoping for what it does not know, those who were to be instructed in the divine lore, needed to be aroused by bodily benefits and visible miracles: so that they might have no doubt as to the wholesomeness of His teaching when they actually experienced His benignant power. …