In the Catholic Church, December 8th marks the Solemnity of the Immaculate Conception of the Blessed Virgin Mary. On this day, we celebrate Mary's being preserved from all sin from the moment of her conception. This is also the patronal feast day of the United States. This is a holy day of obligation for all Catholics. Masses will be celebrated at 12:05pm and 7:00pm in Manning Chapel.
O God, who by the Immaculate Conception of the Blessed Virgin
prepared a worthy dwelling for your Son,
grant, we pray,
that, as you preserved her from every stain
by virtue of the Death of your Son, which you foresaw,
so, through her intercession,
we, too, may be cleansed and admitted to your presence.
Through our Lord Jesus Christ, your Son,
who lives and reigns with you in the unity of the Holy Spirit,
one God, for ever and ever.