THE IMMACULATE CONCEPTION OF
THE BLESSED VIRGIN MARY

DOUBLE, FIRST CLASS / WHITE
From all eternity Father, Son, and Holy Spirit chose Mary to be the Mother of the Word Incarnate. It was unthinkable that she be defiled by sin, in any way or for the least second of time. Therefore, in the instant of creating Mary's person, the Trinity made her immaculate. This grace, like every other grace granted since the fall of Adam, was given her through the merits of Christ. She was truly saved, redeemed, not from an evil already present, but from an evil that threatened.

INTROIT Isa. 61:10I will rejoice greatly in the Lord, and my soul shall be joyful in my God, for He has clothed me with the garment of salvation and covered me with the robe of justice, like a bride adorned with her jewels.
Ps. 29:2. I will extol You, O Lord, for You have upheld me, and have not let my enemies rejoice over me.
V. Glory be . . .

COLLECT
O God, by foreseen merits of the death of Christ, You shielded Mary from all stain of sin and preserved the Virgin Mother immaculate at her conception so that she might be a fitting dwelling place for Your Son. Cleanse us from sin through her intercession so that we also may come to You untainted by sin. Through Our Lord . . .

Commemoration of the preceding Sunday

EPISTLE Prov. 8:22-35The Lord possessed me in the beginning of his ways, before he made any thing from the beginning. I was set up from eternity, and of old, before the earth was made. The depths were not as yet, and I was already conceived, neither had the fountains of waters as yet sprung out. The mountains, with their huge bulk, had not as yet been established: before the hills, I was brought forth: He had not yet made the earth, nor the rivers, nor the poles of the world.
When he prepared the heavens, I was present: when with a certain law, and compass, he enclosed the depths: When he established the sky above, and poised the fountains of waters: When he compassed the sea with its bounds, and set a law to the waters that they should not pass their limits: when he balanced the foundations of the earth; I was with him forming all things: and was delighted every day, playing before him at all times; Playing in the world: and my delights were to be with the children of men.
Now, therefore, ye children, hear me: blessed are they that keep my ways. Hear instruction, and be wise, and refuse it not. Blessed is the man that heareth me, and that watcheth daily at my gates, and waiteth at the posts of my doors. He that shall find me, shall find life, and shall have salvation from the Lord.

GRADUAL Judith 13:23; 15:10
By the Lord the Most High God you are blessed, O Virgin Mary, above all women upon earth. 
V. You are the glory of Jerusalem, you are the joy of Israel, you are the honor of our people.

Alleluia, alleluia! V. Cant. 4:7
You are all fair, O Mary, and there is in you no stain of original sin.
Alleluia!

GOSPEL Luke 1:26-28
At that time, the angel Gabriel was sent from God into a city of Galilee, called Nazareth, to a virgin espoused to a man whose name was Joseph, of the house of David: and the virgin's name was Mary. And the angel being come in, said unto her: "Hail, full of grace, the Lord is with thee: blessed art thou among women."

OFFERTORY ANTIPHON Luke 1:28
Hail, Mary, full of grace, the Lord is with thee. Blessed art thou among women. Alleluia!

SECRET 
Accept this saving host, O Lord, which we offer you on the feast of the Immaculate Conception of the Blessed Virgin Mary. We firmly believe that she was shielded from all stain of sin by Your prevenient grace; may we be freed from all our faults through her holy intercession. Through Our Lord . . .

Commemoration of the preceding Sunday

COMMUNION ANTIPHON
Glorious things are said of you, O Mary, for He who is mighty has done great things for you.

POSTCOMMUNION 
O Lord our God, may the Sacrament that we have received heal in us the wounds of that sin from which blessed Mary alone was preserved by her Immaculate Conception. Through Our Lord . . .

Commemoration of the preceding Sunday