The *Sanctus* is a central acclamation of praise within the Catholic Mass, proclaiming the holiness of God. Its text is drawn directly from Scripture and has remained substantially unchanged since late antiquity.
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The Sanctus (“Holy”) is a short liturgical prayer sung or recited during the Eucharistic Prayer of the Mass. It serves as a communal acclamation affirming God’s holiness and glory, marking a transition from the preface dialogue to the most solemn part of the Eucharistic liturgy.

Text of the Prayer (Latin and English)

The full Latin text of the Sanctus, with parallel English and other vernacular translations, is available at latinprayer.org/prayers/sanctus/.

That page provides the standard Roman Rite form, including the concluding Benedictus (“Blessed is he who comes in the name of the Lord”).

Origin and Historical Background

The Sanctus is among the most ancient components of the Christian liturgy. Its core text combines two biblical sources: Isaiah 6:3 (“Holy, holy, holy is the LORD of hosts”) and Matthew 21:9 (the acclamation of the crowds at Jesus’ entry into Jerusalem). These verses were already associated with divine worship in Jewish tradition before being adopted by early Christians.

By the fourth century, the Sanctus was firmly established in Eucharistic prayers across both Eastern and Western liturgical traditions. Early witnesses include the Apostolic Constitutions and the liturgies of St. James and St. Basil. In the Roman Rite, it has been a stable element of the Mass since at least the time of Pope Gregory the Great (6th–7th century).

Theological and Scriptural Themes

The Sanctus emphasizes the transcendence and holiness of God, expressed through the thrice-repeated “holy,” traditionally understood as a superlative form of praise. The reference to “Lord God of hosts” echoes Old Testament imagery of God as ruler of the heavenly armies.

The second half of the prayer, beginning with Benedictus qui venit, introduces a Christological dimension. By welcoming “he who comes in the name of the Lord,” the assembly implicitly connects Christ’s earthly ministry with his sacramental presence in the Eucharist.

Liturgical and Devotional Use

In the Roman Rite, the Sanctus is sung or recited at every Mass, immediately following the preface and concluding the introductory dialogue of the Eucharistic Prayer. It is typically sung by the congregation together with the priest, often with musical settings ranging from simple chant to elaborate polyphonic compositions.

The prayer also appears, with minor variations, in all major Christian liturgical traditions, underscoring its ecumenical antiquity and shared biblical foundation.

Role in Catholic Life and Practice

The Sanctus functions as a moment of collective affirmation within the Mass, drawing the congregation into the worship of heaven described in Scripture. Its enduring presence in the liturgy illustrates how biblical praise, early Christian tradition, and communal worship converge in a single, concise prayer that continues to shape Catholic liturgical experience today.