Carissimi: Today’s Mass; Monday in the Octave of Corpus Christi

Holy-Eucharist

Monday in the Octave of Corpus Christi; Commemoration of the Vigil of the Nativity of St John the Baptist: Missa “Cibávít eos

The Octave of Corpus Christi being privileged, Feasts are either commemorated only (in which case the appropriate Collect is said after that of the Office) or transferred to after the Octave. 

The Feast of Corpus Christi (Latin for Body of Christ), also known as Corpus Domini, is a Latin Rite liturgical solemnity celebrating the tradition and belief in the body and blood of Jesus Christ and his Real Presence in the Eucharist. It emphasizes the joy of the institution of the Eucharist, which was observed on Holy Thursday in the sombre atmosphere of the nearness of Good Friday.

The Vigil of the Nativity of St. John the Baptist is a privileged vigil in the traditional Roman Rite, distinguished by its solemnity and penitential character. It precedes the great feast of the Precursor, whose birth was miraculously foretold and uniquely celebrated in the Church’s liturgical calendar.

The Mass of the Vigil (prior to 1955 reforms) includes a proper Collect, Epistle (Jeremias 1:4–10), and Gospel (Luke 1:5–17), all rich in prophetic resonance. The Epistle recounts the divine election of Jeremiah from the womb—foreshadowing John’s own sanctification before birth. The Gospel narrates the angel Gabriel’s announcement to Zachary, mirroring the Annunciation, yet underscoring John’s subordinate but essential role in preparing the way for the Lord.

The liturgical tone is one of penitential anticipation. Though not strictly a fast day, violet vestments were traditionally worn, and the Gloria omitted, echoing the vigil structure of major feasts. The Collect petitions for the gift of heavenly grace through the intercession of him who was sent to prepare for Christ, “lest the Lord, when He comes, find us unprepared.”

The Vigil reminds the faithful that grace precedes glory: just as John must decrease so that Christ may increase, so must the soul be humbled and prepared before it can truly rejoice in the coming of the Light.

INTROIT Psalm 80: 17
He fed them with the fat of wheat, alleluia; and filled them with honey, out of the rock, alleluia, alleluia, alleluia. (Ps. 80: 2) Rejoice in God, our Helper sing aloud to the God of Jacob. v. Glory be to the Father and to the Son and to the Holy Ghost, as it was in the beginning, is now and ever shall be, world without end. Amen. Repeat He fed them……

COLLECT
O God, Who in a wonderful Sacrament hast left unto us the memorial of Thy Passion; grant, we beseech Thee, that we may so venerate the sacred mysteries of Thy Body and Blood as to experience continually within ourselves the fruit of Thy Redemption. Who livest and reignest, with God the Father, in the unity of the Holy Ghost, God, Forever and ever. R. Amen.

Commemoration Vigil of the Nativity of St. John the Baptist
Grant, we beseech You, almighty God, that Your household may walk in the way of salvation and, by following the counsels of blessed John the Herald, safely come to our Lord Jesus Christ, Your Son, Whom he foretold. Who livest and reignest with God the Father, in the unity of the Holy Spirit, God, world without end. R. Amen

LESSON 1 Corinthians 11: 23-29
Lesson from the First Epistle of Blessed Paul the Apostle to the Corinthians. Brethren, I have received of the Lord, that which also I delivered to you that the Lord Jesus, the same night in which He was betrayed, took bread, and giving thanks, broke, and said: Take ye and eat, this is My Body which shall be delivered for you; this do for the commemoration of Me. In like manner also the chalice, after He had supped, saying: This chalice is the new testament in My Blood; this do ye, as often as you shall drink, for the commemoration of Me. For as often as you shall eat this bread and drink this chalice, you shall show the death of the Lord until He come. Therefore whosoever shall eat this bread, or drink of the chalice of the Lord unworthily, shall be guilty of the Body and the Blood of the Lord. But let a man prove himself; and so let him eat of that bread, and drink of the chalice. For he that eateth and drinketh unworthily, eateth and drinketh judgment to himself, not discerning the Body of the Lord.

GRADUAL/ ALLELUIA Psalm 144: 15, 16
The eyes of all hope in Thee, O Lord, and Thou givest them meat in due season. V. Thou openest Thy hand, and fillest living every creature with Thy blessing. Alleluia, alleluia. V. (John 6: 56) My Flesh is meat indeed and My Blood is drink indeed: he that eateth My Flesh and drinketh My Blood, abideth in Me, and I in him. Alleluia.

SEQUENCE “Lauda Sion” (At the celebrant’s discretion)

Sion, lift up thy voice and sing:
Praise thy Savior and thy King,
Praise with hymns thy shepherd true.

All thou canst, do thou endeavor,
Yet thy praise can equal never
Such as merits thy great King.

See today before us laid
The living and life-giving Bread!
Theme for praise and joy profound!

The same which at the sacred board
Was, by our incarnate Lord,
Giv’n to His Apostles round.

Let the praise be loud and high:
Sweet and tranquil be the joy
Felt today in every breast.

On this festival divine
Which records the origin
Of the glorious Eucharist.

On this table of the King,
Our new Paschal offering
Brings to end the olden rite.

Here, for empty shadows fled,
Is reality instead;
Here, instead of darkness, light.

His own act, at supper seated,
Christ ordain’d to be repeated,
In His memory divine;

Wherefore now, with adoration,
We, the Host of our salvation,
Consecrate from bread and wine.

Hear, what holy Church maintaineth,
That the bread its substance changeth
Into Flesh, the wine to Blood.

Doth it pass thy comprehending?
Faith, the law of sight transcending
Leaps to things not understood,

Here beneath these signs are hidden
Priceless things, to sense forbidden
Signs, not things, are all we see.

Flesh, from bread, and Blood from wine,
Yet is Christ in either sign,
All entire, confessed to be.

They, who of Him here partake,
Sever not, nor rend, nor break:
But, entire, their Lord receive

Whether one or thousands eat,
All receive the self-same meat,
Nor the less for others leave,

Both the wicked and the good
eat of this celestial Food;
But with ends how opposite!

Here ‘t is life:
and there ‘t is death:
The same, yet issuing to each

In a difference infinite.
Nor a single doubt retain,
When they break the Host in twain,

But that in each part remains
What was in the whole before;
Since the simple sign alone

Suffers change in state or form
The signified remaining one
And the same for evermore.

Lo! upon the altar lies,
Hidden deep from human eyes,
Bread of Angels from the skies,

Made the food of mortal man;
Children’s meat to dogs denied,
In old types presignified:

In the manna Heaven-supplied
In Isaac, and the Paschal lamb.
Jesu! Shepherd of the sheep!

Thou Thy flock in safety keep,
Living Bread! Thy life supply:
Strengthen us, or else we die:

Fill us with celestial grace!
Thou, who feedest us below!
Source of all we have or know!

Grant that with Thy Saints above,
Sitting at the feast of love,
We may see Thee face to face.
Amen. Alleluia.

GOSPEL  St. John 6: 56-59
At that time, Jesus said to the multitude of the Jews: “My Flesh is meat indeed, and My Blood is drink indeed. He that eateth My Flesh, and drinketh My Blood, abideth in Me, and I in him. As the living Father hath sent Me, and I live by the Father, so he that eateth Me, the same shall also live by Me. This is the Bread that came down from Heaven. Not as your fathers did eat manna and are dead. He that eateth this bread shall live forever.”

OFFERTORY ANTIPHON Leviticus 21: 6
The priests of the Lord offer incense and loaves to God, and therefore they shall be holy to their God, and shall not defile His Name. Alleluia.

SECRET
Graciously bestow on Thy Church, we beseech Thee, O Lord, the gifts of unity and peace, which are mystically shown forth in the gifts now offered. Through our Lord Jesus Christ, Thy Son, Who liveth and reigneth with Thee in the unity of the Holy Ghost, God, Forever and ever. R. Amen.

Commemoration Vigil of the Nativity of St. John the Baptist
Sanctify, O Lord, the gifts offered to You, and, by the intercession of Blessed John the Baptist, purify us by them from the stains of our sins. Through Jesus Christ, thy Son our Lord, Who liveth and reigneth with thee, in the unity of the Holy Ghost, God, world without end. R. Amen.

PREFACE of the Incarnation
It is truly meet and just, right and for our salvation, that we should at all times and in all places, give thanks unto Thee, O holy Lord, Father almighty, everlasting God, for through the Mystery of the Word made flesh, the new light of Thy glory hath shone upon the eyes of our mind, so that while we acknowledge God in visible form, we may through Him be drawn to the love things invisible. And therefore with Angels and Archangesl, with Thrones and Dominations, and with all the hosts of the heavenly army, we sing the hymn of The glory, evermore saying:

COMMUNION ANTIPHON  1 Corinthians 11: 26, 27
As often as you shall eat this bread, and drink the chalice, you shall show forth the death of the Lord, until He come: therefore whosoever shall eat this Bread or drink the Chalice of the Lord unworthily shall be guilty of the Body and Blood of the Lord. Alleluia

POSTCOMMUNION
Make us, we beseech Thee, O Lord, to be filled with the eternal enjoyment of Thy Divinity, which is prefigured by the reception in this life of Thy precious Body and Blood. Who livest and reignest with God the Father in the unity of the Holy Ghost, God, Forever and ever. R. Amen.

Commemoration Vigil of the Nativity of St. John the Baptist
May the powerful prayer of blessed John the Baptist go with us, O Lord, and may he plead with our Lord Jesus Christ, Your Son, Whose coming he foretold, to be merciful unto us. Who livest and reignest with God the Father, in the unity of the Holy Spirit, God, world without end. R. Amen

PROPER LAST GOSPEL Luke 1:5-17
In the days of Herod, king of Judea, there was a certain priest named Zachary, of the course of Abia; and his wife was of the daughters of Aaron, and her name was Elizabeth. Both were just before God, walking blamelessly in all the commandments and ordinances of the Lord. But they had no son, for Elizabeth was barren, and they were both advanced in years. Now it came to pass, while he was officiating in the order of his course as priest before God, according to the custom of the priest’s office, that he was chosen by lot to enter the temple of the Lord to burn incense. And the whole multitude of the people were praying outside at the hour of incense. And there appeared to him an angel of the Lord, standing at the right of the altar of incense. And Zachary, seeing him, was troubled, and fear fell upon him. But the angel said to him, Do not be afraid, Zachary, for your petition has been heard, and your wife Elizabeth shall bear you a son and you shall call his name John. And you shall have joy and gladness, and many will rejoice at his birth. For he shall be great before the Lord; he shall drink no wine or strong drink, and shall be filled with the Holy Spirit even from his mother’s womb. And he shall bring back to the Lord their God many of the children of Israel, and he shall himself go before Him in the spirit and power of Elias, to turn the hearts of fathers to their children and the incredulous to the wisdom of the just; to prepare for the Lord a perfect people.