And first of all, by the death of our Redeemer, the New Testament took the place of the Old Law which had been abolished; then the Law of Christ together with its mysteries, enactments, institutions, and sacred rites was ratified for the whole world in the blood of Jesus Christ. For, while our Divine Saviour was preaching in a restricted area — He was not sent but to the sheep that were lost of the House of Israel — the Law and the Gospel were together in force; but on the gibbet of His death Jesus made void the Law with its decrees fastened the handwriting of the Old Testament to the Cross, establishing the New Testament in His blood shed for the whole human race. “To such an extent, then,” says St. Leo the Great, speaking of the Cross of our Lord, “was there effected a transfer from the Law to the Gospel, from the Synagogue to the Church, from the many sacrifices to one Victim, that, as Our Lord expired, that mystical veil which shut off the innermost part of the temple and its sacred secret was rent violently from top to bottom.”
Pius XII, Encyclical Letter Mystici corporis Christi, no. 29 (29 June 1942).
Tell me, you who are so eager to have the law for your master, have you never read the law? You will find it written there, that Abraham had two sons; one had a slave for his mother, and one a free woman. The child of the slave was born in the course of nature; the free woman’s, by the power of God’s promise. All that is an allegory; the two women stand for the two dispensations. Agar stands for the old dispensation, which brings up its children to bondage, the dispensation which comes to us from mount Sinai. Mount Sinai, in Arabia, has the same meaning in the allegory as Jerusalem, the Jerusalem which exists here and now; an enslaved city, whose children are slaves. Whereas our mother is the heavenly Jerusalem, a city of freedom. So it is that we read, Rejoice, thou barren woman that hast never borne child, break out into song and cry aloud, thou that hast never known travail; the deserted one has more children than she whose husband is with her. It is we, brethren, that are children of the promise, as Isaac was. Now, as then, the son who was born in the course of nature persecutes the son whose birth is a spiritual birth. But what does our passage in scripture say? Rid thyself of the slave and her son; it cannot be that the son of a slave should divide the inheritance with the son of a free woman.
— Epistle to the Galatians, iv. 21-30.
Grant, we beseech Thee, O Lord, that Thy people may shun all the wiles of the devil: and with pure mind follow Thee, the only God. Through our Lord.
The Epistle. Ephes. iv. 1.
I therefore, the prisoner of the Lord, beseech you that ye walk worthy of the vocation wherewith ye are called, with all lowliness and meekness, with longsuffering, forbearing one another in love; endeavouring to keep the unity of the Spirit in the bond of peace. There is one body, and one Spirit, even as ye are called in one hope of your calling; One Lord, one faith, one baptism, One God and Father of all, who is above all, and through all, and in you all.
The Gospel. St. Matt. xxii. 34.
When the Pharisees had heard that Jesus had put the Sadducees to silence, they were gathered together. Then one of them, which was a lawyer, asked him a question. tempting him, and saying, Master, which is the great commandment in the law? Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind. This is the first and great commandment. And the second is like unto it, Thou shalt love thy neighbour as thyself. On these two commandments hang all the law and the prophets. While the Pharisees were gathered together, Jesus asked them, saying, What think ye of Christ? whose son is he? They say unto him, The son of David. He saith unto them, How then doth David in spirit call him Lord, saying, The Lord said unto my Lord, Sit thou on my right hand, till I make thine enemies thy footstool? If David then call him Lord, how is he his Son? And no man was able to answer him a word, neither durst any man from that day forth ask him any more questions.