The Roman Missal: Supplement, Masses Authorized for England (English) 17
3Prayer. Deus qui inter cæteros. O God, who among the other angels didst choose the archangel Gabriel to announce the mystery of thy incarnation; mercifully grant, that we who celebrate his festival on earth, may experience his patronage in heaven. Who livest, &c.
4Lesson. Daniel ix. 21—26. In those days, behold the man Gabriel, whom I had seen in the vision at the beginning, flying swiftly, touched me at the time of the evening sacrifice. And he instructed me, and spoke to me, and said: O Daniel, I am now come forth to teach thee, and that thou mightest understand. From the beginning of thy prayers the word came forth: and I am come to shew it to thee, because thou art a man of desires, therefore do thou mark the word and understand the vision. Seventy weeks are shortened upon thy people, and upon thy holy city, that transgression may be finished, and sin may have an end, and iniquity may be abolished; and everlasting justice may be brought; and vision and prophecy may be fulfilled; and the Saint of saints may be anointed. Know thou, therefore, and take notice, that from the going forth of the word, to build up Jerusalem again, unto Christ the prince, there shall be seven weeks, and sixty-two weeks; and the street shall be built again, and the walls in troublesome times. And after sixty-two weeks Christ shall be slain: and the people that shall deny him shall not be his. And a people with their leader that shall come, shall destroy the city and the sanctuary: and the end thereof shall be waste, and after the end of the war the appointed desolation.
5Gradual. Bless the Lord, all ye his angels: you that are mighty in strength, and execute his word. Bless the Lord, O my soul, and let all that is within me praise his holy name.
7shall overshadow thee; and therefore also the Holy which shall be born of thee shall be called the Son of God.
8[After Easter.]
12Secret. May the oblation of our service, and the prayer of the blessed archangel Gabriel, be made acceptable in thy sight, O Lord: that he who is so venerated by us on earth, may thus be an advocate for us in heaven. Through our Lord, &c.
14Postcom. Corporis tui. Having received the mysteries of thy body and blood, we implore thy clemency, O Lord God: that as we knew thy incarnation by the message of Gabriel, so by his intercession we may obtain the benefits of that incarnation. Who livest, &c.