The Trisagion Prayer: An Ancient Hymn of Holy Praise to the Trinity

There are prayers that belong to a single season, and then there are prayers that belong to all of time. This Catholic prayer is written to help you pray with the Church. The Trisagion is one of those prayers that transcends generation, language, and circumstance, an ancient hymn of adoration addressed to the Holy Trinity that the Church has prayed without ceasing since the earliest centuries of the faith. When you add your voice to it, you are joining a chorus that has never stopped.

The word “Trisagion” comes from the Greek, tris, meaning three, and hagios, meaning holy. Its central acclamation is both simple and overwhelming: “Holy God, Holy Mighty, Holy Immortal, have mercy on us.” Three attributes of the one God, offered three times, a threefold recognition of who He is. In the Eastern Christian tradition, this hymn forms part of the daily cycle of prayer, the Divine Liturgy, and the prayers for the departed. In the West it echoes through Good Friday liturgy and through the hearts of all who have learned to stand still before the mystery of God.

The traditional Orthodox Trisagion sequence begins with the sign of the cross, followed by the Prayer to the Holy Spirit, “O Heavenly King”, and then the Trisagion hymn itself, repeated three times. It concludes with a doxology, the “All-holy Trinity” prayer, and the Lord’s Prayer. What follows is that full traditional text, preserved exactly as the Church has handed it down, along with reflection on why these ancient words still carry such weight for believers today. If you have never prayed the Trisagion, this may be the threshold of something new. If you have prayed it all your life, may it come alive again in your mouth today.

Trisagion Prayer

Scripture Reflection

Holy, holy, holy is the Lord of hosts; the whole earth is full of His glory. (Isaiah 6:3, NKJV)

When the prophet Isaiah was caught up in the vision of the heavenly throne room, what he heard was not a sermon or an explanation. He heard the seraphim crying out to one another, “Holy, holy, holy”, a word so large that saying it once could not contain it. The Trisagion prayer carries that same impulse. It is the Church on earth echoing what heaven has never stopped proclaiming. Every time you pray “Holy God, Holy Mighty, Holy Immortal,” you are standing at the edge of that same throne room, adding your voice to a song that Isaiah heard, that John heard in Revelation, and that the whole communion of saints has carried forward across the centuries. These are not merely ancient words. They are your inheritance.

The threefold repetition of the hymn is itself an act of theology, a gentle, reverent insistence that God cannot be reduced. He is holy in His very being, holy in His sovereign power, holy in His eternity beyond death. And yet, after each declaration, the prayer does not merely adore from a distance. It bends: have mercy on us. That movement, from awe to need, from holiness to mercy, is the heartbeat of every true prayer. We approach the God who is utterly other, and we discover He is not cold. He leans toward us.

The second anchor verse that sustains this prayer comes from the book of Revelation: You are worthy, O Lord, to receive glory and honor and power; for You created all things, and by Your will they exist and were created. (Revelation 4:11, NKJV). The Trisagion does not merely memorialize ancient liturgy. It participates in the eternal worship that surrounds the throne of the Almighty right now.

The Trisagion (Traditional Text)

In the name of the Father, and of the Son, and of the Holy Spirit. Amen.

O Heavenly King, Comforter, Spirit of Truth, Who art everywhere present and fillest all things, Treasury of good things and Giver of life: come and dwell in us, and cleanse us of all impurity, and save our souls, O Good One.

Holy God, Holy Mighty, Holy Immortal, have mercy on us.

Holy God, Holy Mighty, Holy Immortal, have mercy on us.

Holy God, Holy Mighty, Holy Immortal, have mercy on us.

Glory to the Father, and to the Son, and to the Holy Spirit, both now and ever, and unto the ages of ages. Amen.

All-holy Trinity, have mercy on us. Lord, cleanse us of our sins. Master, pardon our iniquities. Holy One, visit and heal our infirmities for Thy name’s sake.

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

Glory to the Father, and to the Son, and to the Holy Spirit, both now and ever, and unto the ages of ages. Amen.

Our Father, Who art in heaven, hallowed be Thy name. Thy kingdom come. Thy will be done, on earth as it is in heaven. Give us this day our daily bread; and forgive us our trespasses, as we forgive those who trespass against us. And lead us not into temptation, but deliver us from evil.

For Thine is the kingdom, and the power, and the glory, of the Father, and of the Son, and of the Holy Spirit, now and ever, and unto the ages of ages. Amen.

What This Prayer Means

The Trisagion opens with the Prayer to the Holy Spirit, which in the Eastern Christian tradition is among the most intimate of all invocations. To call the Spirit “Heavenly King” and “Treasury of good things” in the same breath is to hold two truths together: He reigns, and He gives. He is sovereign, and He is generous. The request that follows, “come and dwell in us”, is not a ceremonial phrase. It is an act of surrender, an invitation for the Third Person of the Trinity to make a home in the one who prays.

The central acclamation, “Holy God, Holy Mighty, Holy Immortal”, names God across three dimensions of His nature. Holy God: He is pure, set apart, beyond all created things. Holy Mighty: He is not merely abstract holiness; He holds all power. Holy Immortal: He exists beyond death, beyond time, beyond every limit that defines our creaturely life. And between each declaration comes the plea that grounds everything: “have mercy on us.” This is where the prayer breathes. It does not linger in dread before God’s holiness but turns immediately to trust in His mercy. For those who have begun their days in praise and worship, this movement from adoration to petition will feel deeply familiar.

The “All-holy Trinity” prayer that follows extends the mercy plea into specifics: cleansing of sins, pardon of iniquities, healing of infirmities. Notice that it asks for all three, moral, relational, and physical wholeness, because the God of the Trisagion is Lord over every dimension of human need. The prayer then flows naturally into the Lord’s Prayer, the prayer Jesus Himself gave to the Church. In this way the Trisagion does not exist as an isolated devotion but as a portal into the full pattern of Christian prayer: praise, confession, petition, surrender to God’s will, and trust in His provision.

When Catholics Pray This Prayer

• During the Good Friday liturgy, when the Trisagion is sung as the faithful venerate the cross in the Western Church.
• At the beginning of the daily cycle of prayer in Eastern Catholic and Orthodox traditions, as part of the morning and evening prayer rule.
• During the Divine Liturgy and other sacramental celebrations, where it is sung by the choir or the whole assembly before the reading of Scripture.
• At funeral and memorial services, the Trisagion is a traditional prayer for the departed, sung as a final act of commendation entrusting the soul to God’s mercy.
• In personal daily prayer, as part of the traditional set of introductory prayers that precede an Akathist, a psalm cycle, or other devotional reading.
• As a meditative prayer during times of stillness and adoration, particularly when words feel too small and the soul simply needs to rest in God’s holiness.
• When preparing to receive the Eucharist or enter the presence of God in a chapel or before an icon, as a way of quieting the heart and centering attention on the Trinity.

Closing Reflection

There is a reason the Church has never stopped praying these words. In an age that moves too fast for reverence, the Trisagion asks you to slow down and stand before the God who is holy, mighty, and immortal, and to find, in that standing, not terror but mercy. Every Christian tradition that has prayed these words has discovered the same thing: when you name who God is, your own burdens begin to find their proper size. He is holy. You are held. Those two truths are enough to carry you through any day. For those who find that Catholic benediction prayers mark the rhythm of their worship, the Trisagion belongs in that same sacred pattern, a beginning that sets the whole day in the light of the Trinity.

Bring this prayer into your morning, your grief, your weariness, your wonder. Pray it three times as the tradition invites, and let each repetition go a little deeper than the last. The words are ancient, but the mercy they reach for is alive and present right now. He is the same God Isaiah saw, the same God the early Church cried out to, the same God who hears your voice today. Come to Him with these words, and you will not come away empty. Those who have discovered how worship and trust in God’s provision belong together will find in the Trisagion the same deep logic, adoration first, and everything else follows. And for those who lead others into His presence, who know what it is to carry others’ worship as a burden and a calling, this ancient hymn is a place to set that weight down and simply be small before a very great God.

In the name of the Father, and of the Son, and of the Holy Spirit. Amen.