Holy Thursday | The Lord's Supper
The Triduum begins with the evening Mass of the Lord's Supper on Holy Thursday, which commemorates when the Eucharist was instituted at the Last Supper by Jesus. The traditional English name for this day, "Maundy Thursday", comes from the Latin phrase Mandatum novum — "a new command" (or mandate) — which comes from Christ's words: "A new commandment I give to you, that you love one another; even as I have loved you, that you also love one another" (Jn 13:34). The Gospel reading for the liturgy is from the first part of the same chapter and depicts Jesus washing the feet of the disciples, an act of servitude (commonly done by slaves or servants in ancient cultures) and great humility.
Thus, in this memorial of Jesus' last meal with His disciples, the faithful are reminded of the everlasting value of that meal, the gift of the priesthood, the grave dangers of turning away from God, the necessity of the approaching Cross, and the abiding love that the Lord has for His people.
Earlier on Holy Thursday (or earlier in the week) the bishop celebrates the Chrism Mass, which focuses on the ordained priesthood and the public renewal by priests of their promises to faithfully fulfill their office. In the evening liturgy, the priest, who is persona Christi, will wash the feet of several parishioners, oftentimes catechumens and candidates who will be entering into full communion with the Church at Easter Vigil. In this way the many connections between the Eucharist, salvation, self-sacrifice, and service to others are brought together.
These realities are further anticipated in Jesus' remark about the approaching betrayal by Judas: "Whoever has bathed has no need except to have his feet washed, for he is clean all over; so you are clean, but not all." The sacrificial nature of the Eucharist is brought out in the Old Testament reading, from Exodus 12, which recounts the first Passover and God's command for the people of Israel, enslaved in Egypt, to kill a perfect lamb, eat it, and then spread its blood over the door as a sign of fidelity to the one, true God. Likewise, the reading from Paul's epistle to the Christians in Corinth (1 Cor 11) repeats the words given by the Son of God to His apostles at the Last Supper: "This is my body that is for you. Do this in remembrance of me" and "This cup is the new covenant in my blood. Do this, as often as you drink it, in remembrance of me."
Good Friday | Veneration of the Cross
This is the first full day of the Easter Triduum, a day commemorating the Passion, Cross, and death of Jesus Christ, and therefore a day of strict fasting. The liturgy is profoundly austere, perhaps the most simple and stark liturgy of the entire year. The liturgy of the Lord's Passion consists of three parts: the liturgy of the Word, the veneration of the Cross, and the reception of Communion. Although Communion is given and received, this liturgy is not a Mass; this practice dates back to the earliest years of the Church and is meant to emphasize the somber, mournful character of the day. The Body of Christ that is received by the faithful on Good Friday was consecrated the prior evening at the Mass of the Lord's Supper and, in most cases, was adored until midnight or another late hour.
The simple, direct form of the Good Friday liturgy and readings brings the faithful face to face with the cross, the great scandal and paradox of Christianity.
The liturgy of the Word begins with silence. After a prayer, there are readings from Isaiah 52 and 53 (about the suffering Servant), Psalm 31 (a great Messianic psalm), and the epistle to the Hebrews (about Christ the new and eternal high priest). Each of these readings draws out the mystery of the suffering Messiah who conquers through death and who is revealed through what seemingly destroys Him. Then the Passion from the Gospel of John (18:1-19:42) is proclaimed, often by several different lectors reading respective parts (Jesus, the guards, Peter, Caiaphas the high priest, Pilate, the soldiers). In this reading the great drama of the Passion unfolds, with Jew and Gentile, male and female, and the powerful and the weak all revealed for who they are and how their choices to follow or deny Christ will affect their lives and the lives of others.
The simple, direct form of the Good Friday liturgy and readings brings the faithful face to face with the cross, the great scandal and paradox of Christianity. The cross is solemnly venerated after intercessory prayers are offered for the world and for all people. The deacon (or another minister) brings out the veiled cross in procession. The priest takes the cross, stands with it in front of the altar and faces the people, then uncovers the upper part of the cross, the right arm of the cross, and then the entire cross. As he unveils each part, he sings, "This is the wood of the cross." He places the cross and then venerates it; other clergy, lay ministers, and the faithful then approach and venerate the cross by touching or kissing it. In this way each person acknowledges the instrument of Christ's death and publicly demonstrates their willingness to take up their cross and follow Christ, regardless of what trials and sufferings it might involve.
Holy Saturday and Easter Vigil | The Mother of All Vigils
The ancient Church celebrated Holy Saturday with strict fasting in preparation of the celebration of Easter. After sundown the Christians would hold an all-night vigil, which concluded with baptism and Eucharist at the break of dawn. The same idea (if not the identical timeline) is found in the Easter Vigil today, which is the high point of the Easter Triduum and is filled with an abundance of readings, symbols, ceremony, and sacraments.
The Easter Vigil, the Church states, ranks "the mother of all vigils" (General Norms, 21). Being a vigil — a time of anticipation and preparation — it takes place at night, starting after nightfall and finishing before daybreak on Easter, thus beginning and ending in darkness. It consists of four general parts: the Service of Light, the Liturgy of the Word, Christian Initiation, and Liturgy of the Eucharist.
The Service of Light begins outdoors (or in a space outside of the main sanctuary) and in darkness. A fire is lit and blessed, and then the Paschal candle, which symbolizes the light of Christ, is lit from the fire by the priest, who proclaims: "May the light of Christ, rising in glory, dispel the darkness of our hearts and minds." The biblical themes of light removing darkness and life overcoming death suffuse the entire Vigil. The Paschal candle will be placed in the sanctuary (usually by the altar) for the Easter season, then will be kept in the baptistery so that when the sacrament of baptism is administered the candles of the baptized can be lit from it.
The Easter Vigil concludes with the Liturgy of the Eucharist and the reception of the Body, Blood, Soul, and Divinity of the Crucified and Risen Lord. For as Eastern Catholics sing hundreds of times during the Paschal season, "Christ is risen from the dead; by death He conquered death, and to those in the graves, He granted life!"
The faithful then join in procession back to the main sanctuary. The deacon (or priest, if no deacon is present), carries the Paschal Candle, lifting it three different times and chanting: "Christ our Light!" The people respond by singing, "Thanks be to God!" Everyone's candles are lit from the Paschal candle and the faithful return in procession into the sanctuary. Then the Exultet is sung by the deacon (or priest or cantor). This is an ancient and beautiful poetic hymn of praise to God for the light of the Paschal candle. It may be as old as Saint Ambrose (d. 397) and has been part of the Roman tradition since the ninth century. In the darkness of the church, lit only by candles, the faithful listen to the song of light and glory:
Rejoice, O earth, in shining splendor,
radiant in the brightness of your King!
Christ has conquered! Glory fills you!
Darkness vanishes for ever!
May the Morning Star which never sets
find this flame still burning:
Christ, that Morning Star,
who came back from the dead,
and shed his peaceful light on all mankind,
your Son, who lives and reigns for ever and ever. Amen.
The Liturgy of the Word follows, consisting of seven readings from the Old Testament and two from the New Testament. These readings include the story of creation (Genesis 1 and 2), Abraham and Isaac (Genesis 22), the crossing of the Red Sea (Exodus 14 and 15), the prophet Isaiah proclaiming God's love (Isaiah 54), Isaiah's exhortation to seek God (Isaiah 55), a passage from Baruch about the glory of God (Baruch 3 and 4), a prophecy of Ezekiel (Ezekiel 36), Saint Paul on being baptized into Jesus Christ (Rom 6), and the Gospel of Luke about the empty tomb discovered on Easter morning (Luke 24:1-21).
These readings constitute an overview of salvation history and God's various interventions into time and space, beginning with Creation and concluding with the angel telling Mary Magdalene and others that Jesus is no longer dead; "You seek Jesus of Nazareth, the crucified. He has been raised; he is not here." Through these readings "the Lord 'beginning with Moses and all the prophets' (Lk 24.27, 44-45) meets us once again on our journey and, opening up our minds and hearts, prepares us to share in the breaking of the bread and the drinking of the cup" (General Norms, 11).
Some of the readings are focused on baptism, that sacrament which brings man into saving communion with God's divine life. Consider, for example, Saint Paul's remarks in Romans 6: "We were indeed buried with him through baptism into death, so that, just as Christ was raised from the dead by the glory of the Father, we too might live in newness of life." Easter is in many ways the season of baptism, the sacrament of Christian initiation, in which those who formally lived in darkness and death are buried and baptized in Christ, emerging filled with light and life.
From the early days of the ancient Church the Easter Vigil has been the time for adult converts to be baptized and enter the Church. After the conclusion of the Liturgy of the Word, catechumens (those who have never been baptized) and candidates (those who have been baptized in a non-Catholic Christian denomination) are initiated into the Church by (respectively) baptism and confirmation. The faithful are sprinkled with holy water and renew their baptismal vows. Then all adult candidates are confirmed and general intercessions are stated. The Easter Vigil concludes with the Liturgy of the Eucharist and the reception of the Body, Blood, Soul, and Divinity of the Crucified and Risen Lord. For as Eastern Catholics sing hundreds of times during the Paschal season, "Christ is risen from the dead; by death He conquered death, and to those in the graves, He granted life!"
** From catholiceducation.org