Holy Thursday 2027: The Mass of the Lord's Supper, Explained

This is the night: what Holy Thursday commemorates

At the Last Supper, "Jesus took bread, and blessed, and broke: and gave to his disciples, and said: Take ye, and eat. This is my body" (Matthew 26:26, Douay-Rheims). The Church has always read those words exactly as they sound. In that moment Christ instituted the Eucharist, anticipating his sacrifice on the Cross and giving the Church the memorial that makes it present on every altar since (CCC 1337–1340).

In the same breath he told the apostles to "do this for a commemoration of me" (Luke 22:19, Douay-Rheims) — and in that command the Church has always recognized the institution of the priesthood. The men at that table were the first priests of the New Covenant, ordained to do what he had just done (CCC 1337).

So Holy Thursday holds three mysteries at once, and the evening Mass honors all three: the Eucharist, the priesthood, and the commandment of brotherly love that Jesus acted out on his knees with a towel and a basin of water.

The Chrism Mass: the diocese gathers first

Before the evening liturgy, there is a second, distinct Mass proper to Holy Thursday: the Chrism Mass, celebrated by the bishop with the priests of the whole diocese at the cathedral. Many dioceses move it earlier in Holy Week so that priests from distant parishes can attend, so check your diocese's schedule.

At the Chrism Mass the bishop consecrates the sacred chrism and blesses the oil of catechumens and the oil of the sick — the oils that will be used in baptisms, confirmations, ordinations, and anointings across the diocese for the entire year to come. And every priest present stands and renews the promises he made on the day of his ordination.

It is a fitting overture to the evening: on the day the priesthood was instituted, the priests of the diocese gather around their bishop and say yes again. If you have never seen your diocese assembled in one place, the Chrism Mass is worth the drive to the cathedral.

The Mass of the Lord's Supper, step by step

The evening Mass — celebrated after sundown, when the Triduum begins — follows the familiar shape of every Mass, but with moments found on no other night of the year:

1. 1The Gloria returns — with bells. The Gloria, silent since Lent began, is sung, and in many parishes the church bells ring throughout it. Then the bells fall silent, and by long tradition they do not sound again until the Gloria of the Easter Vigil.
2. 2The Gospel: the washing of the feet. The reading is John 13 — Jesus rising from supper, tying a towel around his waist, and washing his disciples' feet over Peter's protest.
3. 3The Mandatum. After the homily, the priest sets aside his chasuble, kneels, and washes the feet of members of the congregation, doing literally what Christ did. The rite is called the Mandatum, from the Latin for "commandment" — the new commandment given that night, that we love one another as he loved us (John 13:34).
4. 4The Liturgy of the Eucharist. The Mass continues at the altar — on the very night the Eucharist was given, the Church does what she was told to do. Enough hosts are consecrated for tonight and for tomorrow, because on Good Friday no Mass will be celebrated anywhere in the world.
5. 5The procession to the altar of repose. After Communion, there is no closing blessing and no dismissal. Instead the priest carries the Blessed Sacrament in solemn procession — candles, incense, the congregation kneeling — to a side chapel or altar prepared with flowers and light, called the altar of repose.
6. 6The stripping of the altar. While the church empties, the main altar is stripped bare: cloths removed, candles carried away, crosses veiled or removed, the tabernacle left open and empty. The church that was full of light an hour ago is left dark and vacant — because the Lord has gone out to the garden, and the Passion has begun.

"Could you not watch one hour?": the night watch

The liturgy does not really end — it goes quiet. The faithful are invited to remain in adoration before the Blessed Sacrament at the altar of repose, keeping company with Christ in his agony in Gethsemane. The invitation comes straight from the Gospel: finding the apostles asleep, Jesus asked Peter, "What? Could you not watch one hour with me?" (Matthew 26:40, Douay-Rheims).

Parishes typically keep the watch until midnight, some through the entire night. There is nothing to do and nothing to say — you kneel or sit in a quiet, candlelit chapel with the Lord, for as long as you can stay. Many Catholics count this hour among the most intimate of the whole year. In some cities the old custom survives of visiting the altars of repose at several churches in one night — traditionally seven.

If you have never made a holy hour in your life, this is the night to make your first one. No experience required; presence is the whole practice.

How to keep Holy Thursday

The evening Mass is not a holy day of obligation — everyone present chose to be there. If you want to enter the night fully:

• ◆Find your parish's schedule now. Most parishes celebrate the Mass of the Lord's Supper between 7 and 8 p.m. Use our find-a-parish guide if you need a church.
• ◆Stay for the procession. The last fifteen minutes — the procession and the stripping of the altar — are what make the night unlike any other. Do not slip out after Communion.
• ◆Keep an hour of watch. Even thirty minutes at the altar of repose will change how Good Friday lands the next day.
• ◆Go to confession beforehand if you need it. The Triduum is best entered clean; our confession guide covers exactly what to do, however long it has been.
• ◆Read John 13 before you go. The liturgy assumes the story; ten minutes with the Gospel beforehand turns watching into recognition.

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