"For the Feast of the Immaculate Conception, we offer an instruction on the Mass propers, some sacred music selections and links to devotions and additional texts ...Our Lady is not only the Patroness of the United States of America, but also the particular Patroness of the Society of St. Pius X. In her honor and for the spiritual recollection of our readers, we offer here the texts of the Mass of the Immaculate Conception, along with some suggested musical compositions related to the propers. There is also a sidebar featuring links to prayers and additional texts about the Immaculate Conception ... Please also remember to pray for the SSPX's clerics who will be making or renewing their engagements in our priestly society tomorrow.

Introit antiphon (Isaias 61:10)

Gaudens gaudebo in Domino, et exsultabit anima mea in Deo meo: quia induit me vestimentis salutis: et indumento justitiae circuмdedit me, quasi sponsam ornatam monilibus suis.

I will greatly rejoice in the Lord, and my soul shall be joyful in my God: for He hath clothed me with the garments of salvation, and with the robe of justice He hath covered me, as a bride adorned with her Jєωels.

(Ps. 29:2) I will extol Thee, O Lord, for Thou hast upheld me: and hast not made my enemies to rejoice over me. Glory be, etc.

Collect

O God, who by the Immaculate Conception of the Virgin didst prepare a worthy dwelling-place for Thy Son: we beseech Thee, that as by the foreseen death of the same Thy Son, Thou didst preserve her from all stain, so Thou wouldst grant unto us also, through her intercession, to come unto Thee with clean hearts. Through the same Jesus Christ Our Lord, Thy Son, Who liveth and reigneth with Thee in the unity of the Holy Ghost, God, world without end.