Vigil of the Immaculate Conception of Our Lady
O come hither, and hearken, all ye that fear God; and I will tell you what great things he hath done for my soul. * Shout with joy to God all the earth, sing ye a psalm to His name, give glory to His praise.
(Psalm 65:16,1-2 from the Introit of Mass)
Deus, qui Unigéniti tui Matrem ab origináli culpa in sua Conceptióne mirabíliter praeservásti: da, quaesumus; ut sua nos intercessióne munítos, corde mundos fácias suæ interésse festivitáte.
O God, Who didst wondrously preserve the mother of Thine only-begotten Son from original sin in her own conception, grant, we beseech Thee, that Thou mayest make us, strengthened by her intercession, to keep her festival with clean hearts.