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The Kyrie is one of the shortest prayers in the Mass, but no one should take this as indicative of its relative significance. It is a tremendously important prayer where we, in simple, humble terms, acknowledge before God our absolute need for Him, our sin that is laid before Him always (Ps. 51), and how His kindness toward us is our only true hope.

It is simple enough, especially in the Gregorian chant form, to memorize almost immediately: Lord, have mercy. Christ, have mercy. Lord, have mercy.

That exact simplicity is critical in the role it has played over the centuries: it is a cry of the heart that expresses itself clearly in the Mass as we prepare our hearts to receive Christ in the Eucharist, and it also naturally flows out into a regular prayer we can gently express throughout the day, through all of our challenges, sufferings, sins, and mistakes. It is a beautiful way to be continually returning to the Lord.

Listen to the Kyrie here:

(This is my version of the Gregorian chant Ave Maria, and you can find my free full Gregorian chant album with PDF guide at the end of this article.)

Greek Text

Kyrie, eleison.
Kyrie, eleison.
Kyrie, eleison.

Christe, eleison.
Christe, eleison.
Christe, eleison.

Kyrie, eleison.
Kyrie, eleison.
Kyrie, eleison.

English Translation

Lord, have mercy.
Lord, have mercy.
Lord, have mercy.

Christ, have mercy.
Christ, have mercy.
Christ, have mercy.

Lord, have mercy.
Lord, have mercy.
Lord, have mercy.

Why the Kyrie Is in Greek

Most people expect the older sung parts of the Roman Mass to be in Latin, and this is normally the case. But the Kyrie is sung in Greek due to its roots in the original Greek writings of Scripture, prior to any translation into any other language, including Latin which became more universalized as the centuries progressed.

The Greek is another one of the things that makes it stand out and sets it apart from the other prayers. The words are ancient, and they preserve a trace of the early Church’s wider liturgical world, reminding us of the complex milieu into which the Gospel was first preached and written of by St. Paul and the other authors, as well as prayed. We join, mystically, in the prayers of the early Christians, and using the same words many of them would have used is powerful.

You do not need to know Greek to understand and enter into the prayer, although it is easily translated. The meaning is direct: mercy is being asked for, again and again.

This constant requested for mercy, with its pleading repetition, is a reminder that this desire should be humbly always in our hearts and on our lips.

Where the Kyrie Appears in the Mass

The Kyrie usually comes near the beginning of Mass after the penitential act, and the placement is important. Before the readings, before the Eucharistic Prayer, before Communion, the Church begins by asking for mercy as a preparation for everything else that is to be mystically presented to us in the Liturgy.

The prayer is neither elaborate nor sentimental. It is not a long explanation of everything that has gone wrong, which perhaps in our human complexity we drift toward in our many-worded prayers. It is simply an honest request, without excuse, and meant to be prayed with a pure, simple heart.

Why the Repetition Matters

The repeated structure of the Kyrie is important.

Repetition can sometimes feel unnecessary in modern speech, but in prayer it often does the opposite. Repetition slows the mind down and allows the words to take root in the soul.

“Lord, have mercy” is not something that needs to be improved by extra language. The repetition keeps returning to the same point, focusing us on and containing within it a core truth of our faith: we are sinners in need of a God to come and save us, as only He can.

The Jubilate Deo Chant Setting

The Jubilate Deo setting of the Kyrie is clear and accessible, which is why it is useful for congregational singing and has often been recommended as a humble entry point for the faithful into the Gregorian chant tradition. The melody does not draw attention away from the prayer, lending enough melodic shape to be sung, but not so much decoration as to distract in any way. It instantly reveals the power of the Gregorian chant musical style, tailor-made for the needs of the heart – perhaps especially now in the midst of modern noise.

One can easily focus on the central meaning of the song and prayer.

For someone new to the world of Gregorian chant, this is the heart of it: the Kyrie is brief, ancient, and meant to be prayed much more than analyzed. It can simply be sung and absorbed, allowing the soul to be transformed in Christ.