Immaculate Conception of the Blessed Virgin Mary
Conceptio Immaculata Beatae Mariae Virginis
Double of the First Class
Commemoration of the feria.
Collect
O GOD, who by the Virgin's immaculate conception didst prepare a worthy dwelling for thy Son, we beseech thee, that thou, who by the death of that same Son of thine, foreseen by thee, didst preserve her from every stain, wouldst grant that by her intercession we also may be purified, and so come to thee.
From The Catholic Prayer Book and Manual of Meditations, compiled by Patrick Francis Moran, 1883
