Dominica Infra Octavam Nativitatis ~ Semiduplex Dominica minor

Tues, 12/30/25:

Today is the transferred Sunday within the octave of Christmas under the 1954 (semi-double) rubrics; the Mass and Office of this Sunday are transferred entirely to December 30, with all the privileges of an ordinary Sunday, whenever December 26, 27, or 28 fall on Sunday. Mass: Proper Mass of the Sunday within the Christmas octave. White. Gloria. Gradual/Alleluia. Credo. Preface of the Nativity. Proper Communicantes for Christmas in the Canon. Ite. Commemoration of the octave of Christmas (prayers of Christmas Day). No 3rd prayer. Office: Proper office. White. Matins of 3 nocturns of 9 lessons (1st nocturn = from the Epistle to the Romans for December 30). Te Deum. Psalms and antiphons at Matins as on Christmas Day. At Lauds and the hours, under 1954, psalms of Sunday (Prime = 53, 118.1, 118.2) with antiphons of Christmas Day. All else from the proper for the Sunday in the octave. Proper collect of the Sunday. Commemoration of the octave of Christmas at Lauds. Omit suffrage. (LB236 on Twitter/X.)

Introitus
Sap 18:14-15.
Dum médium siléntium tenérent ómnia, et nox in suo cursu médium iter háberet, omnípotens Sermo tuus, Dómine, de cœlis a regálibus sédibus venit.
Ps 92:1
Dóminus regnávit, decórem indútus est: indútus est Dóminus fortitúdinem, et præcínxit se.
℣. Glória Patri, …

Collect
℣. The Lord be with you.
℟. And with thy spirit.
Let us pray.
O Almighty and eternal God, direct our actions in conformity with Your will, that in the name of Your beloved Son we may be worthy to do good works in abundance.
Who livest and reignest with God the Father, in the unity of the Holy Spirit, God, world without end.
℟. Amen

Let us pray.
For the Octave of the Nativity.
Grant, we beseech You, almighty God, that the new birth, in the flesh, of Your only-begotten Son may deliver us whom the bondage of old keeps under the yoke of sin.
Through the same Jesus Christ, thy Son, Our Lord, Who liveth and reigneth with thee in the unity of the Holy Ghost, God, world without end.
℟. Amen.

From the Holy Gospel according to Luke

Luke 2:33-40
In that time, his father and mother were wondering at those things which were spoken concerning him. And so on.

Homily by St. Ambrose, Bishop of Milan.
Bk. ii on Luke ii
We see that God's abounding grace is poured forth on all by the birth of the Lord, and that the gift of prophecy is not denied to the righteous, but to the unbelieving. Simeon prophesieth that our Lord Jesus Christ is set for the fall and rising again of many in Israel, setting forth that the just and the unjust reap different fruits from the coming of the Saviour; so will it be with us; according to our individual works will the True and Just Judge apportion to us punishment or reward.

Post Communion
P. The Lord be with you.
S. And with thy spirit.
Let us pray.
By the working of this sacrament, O Lord, may our sins be erased and our just desires fulfilled.
Through Jesus Christ, thy Son our Lord, Who liveth and reigneth with thee, in the unity of the Holy Ghost, God, world without end.
℟. Amen.

Let us pray.
For the Octave of the Nativity.
Grant, we beseech You, almighty God, that the Saviour of the world, born this day, Who is the author of our birth in godliness, may bestow on us immortal life.
Who livest and reignest with God the Father, in the unity of the Holy Spirit, God, world without end.
℟. Amen