In the name of the Father,
and of the Son,
and of the Holy Spirit.
Amen.
In nomine Patris,
et Filii,
et Spiritus Sancti.
Amen.
How to Make the Sign of the Cross
Using the right hand with the fingers together and the thumb lightly touching the fingertips, or with fingers extended and together:
Touch the forehead — "In the name of the Father"
Beginning at the top: God the Father is the origin and source of all things. The forehead — the seat of thought and reason — is first.
Touch the breast (centre of the chest) — "and of the Son"
The Son of God descended from heaven and took flesh — "he came down." The movement downward from forehead to breast traces this descent. The breast is also the seat of the heart — the place where we receive the Incarnate Word.
Touch the left shoulder — "and of the Holy"
The horizontal bar of the Cross. In the Western (Latin) Catholic tradition, left shoulder is touched first. (Eastern Catholic and Orthodox Christians touch right shoulder first.)
Touch the right shoulder — "Spirit"
The Cross is completed. The movement from left to right has been interpreted as moving from sinfulness (left) toward righteousness (right), or as a symbolic blessing of the whole person.
Bow the head or fold the hands — "Amen"
"Amen" — from the Hebrew for "it is firm, it is true" — affirms and seals the prayer.
The Biblical Root — The Tau Mark and the Sealing of the Faithful
The Sign of the Cross is not merely a Christian invention — it has a biblical prehistory. In Ezekiel 9:4, God commands an angel to mark the foreheads of the faithful in Jerusalem with the last letter of the Hebrew alphabet: the Taw (Tau). In ancient Hebrew script, the Tau was written as an X or a cross shape — visually indistinguishable from the Greek Chi (Χ) or the Roman cross. The Fathers of the Church saw in this Ezekiel passage the prophetic type of the Sign of the Cross.
The Book of Revelation extends this typology. Revelation 7:3: “Do not harm the earth or the sea or the trees until we have sealed the servants of our God on their foreheads.” Revelation 9:4 and 14:1 develop the same image: the sealed are protected; the unsealed are not. The Sign of the Cross, made on the forehead at Baptism and renewed daily by the faithful, is the fulfilment of this sealing — the mark of belonging to God that no power can erase.
Tertullian, writing c. 204 AD, understood the Sign of the Cross as this seal made visible: the Tau-mark of Ezekiel applied now through faith in the Crucified Lord. The sacramental logic is continuous: Baptism marks us once; the daily Sign of the Cross renews and claims that mark in every moment of ordinary life.
See also: at the Triple Sign before the Gospel at Mass, the priest (and faithful) make three small crosses with the thumb — on the forehead, lips, and breast — praying silently: “May the Lord be in my mind, on my lips, and in my heart.” This triple sign distils the full Sign of the Cross into its three dimensions: thought, word, and will.
The Sign of the Cross as Sacramental — CCC 1667–1673
The Sign of the Cross is a sacramental in Catholic theology — not merely a symbolic gesture but an efficacious sign that produces real spiritual effects by the prayer of the Church. The Catechism of the Catholic Church §1667 defines sacramentals as “sacred signs which bear a resemblance to the sacraments. They signify effects, particularly of a spiritual nature, which are obtained through the intercession of the Church.”
This distinguishes Catholic and Eastern Orthodox use from most Protestant practice: for Catholics, the Sign of the Cross is not merely a reminder of the Cross but an act of consecration — the body is signed and thereby placed under the protection and claim of the Triune God. CCC §1668 notes that sacramentals “sanctify various circumstances of Christian life.”
At Baptism, the priest traces the Sign of the Cross on the forehead of the candidate before any water is poured — before the creed is professed, before the chrism is applied. This makes the Sign of the Cross literally the first mark of Christian identity. At Confirmation, the bishop traces it again in chrism. The Christian life begins, is confirmed, and ends (at the Anointing of the Sick) with this sign.
The Theology of the Gesture
The Sign of the Cross is simultaneously a confession of faith and an act of prayer. It confesses three dogmas at once: the Trinity (Father, Son, Holy Spirit), the Redemption (the Cross), and the Incarnation (the gesture traces a cross on the body — the body of the one who makes it, joined by Baptism to the Body of Christ).
The phrase In nomine — "In the name" — is singular, not plural. Not "in the names" of three separate gods, but "in the name" of the one God who is Father, Son, and Holy Spirit. This single phrase refutes both polytheism (many gods) and Arianism (the Father and Son as separate beings of different rank).
St. Thomas Aquinas taught that the Sign of the Cross is effective for three reasons: it professes the Trinity, it recalls the Redemption, and it dispels temptation. St. Cyril of Jerusalem (4th century) wrote: "Let us not be ashamed to confess the Crucified. Be the Cross our seal made with boldness by our fingers on our brow, and in every thing; over the bread we eat and the cups we drink; in our comings in and goings out; before our sleep; when we lie down and when we rise up; when we are in the way and when we are still."
History
The gesture of tracing a cross on oneself is attested from the very earliest centuries of Christianity. Tertullian (c. 160–220 AD) is the first to describe it explicitly: "In all our travels and movements, in all our coming in and going out, in putting on our shoes, at the bath, at the table, in lighting our candles, in lying down, in sitting down, whatever employment occupies us, we mark our foreheads with the Sign of the Cross." This was written around c. 204 AD — within living memory of the Apostolic age, and within three generations of the Resurrection itself.
The earliest form of the gesture appears to have been a small cross traced with the thumb on the forehead. The larger form — touching forehead, breast, and shoulders — appears to have developed gradually and is well attested by the early medieval period. The Western tradition of touching left shoulder before right, and the Eastern tradition of touching right before left, both have ancient roots and both are valid. Orabimus uses the Western (Latin rite) form.
From Forehead to Full Body — The Historical Development
The Sign of the Cross in the Rosary
Every Rosary begins and ends with the Sign of the Cross. By framing the prayer with this gesture, the Rosary is consecrated as an act of Trinitarian worship from the first moment to the last. The USCCB's guide to the Rosary begins: "Make the Sign of the Cross." It is not merely a preamble but a prayer in itself — the first prayer of the Rosary.
Related prayers: Apostles' Creed — prayed immediately after the Sign of the Cross; Our Father Prayer — follows on the first bead; complete Rosary guide.
The Sign of the Cross at the close of the Rosary also seals what has been prayed. Having meditated on the Mysteries of Christ's life, suffered with Him in the Sorrowful Mysteries, rejoiced with Him in the Glorious Mysteries, the Rosary concludes with the same gesture that opened it — returning to the Trinity, which is the source and end of all prayer.
Begin and end the Rosary with the Sign of the Cross.
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Frequently Asked Questions
Do Eastern Catholics make the Sign of the Cross differently?
Yes. Eastern Catholics (Byzantine, Coptic, etc.) and Eastern Orthodox Christians touch the right shoulder before the left, the opposite of the Latin rite tradition. They also typically use three fingers pressed together (symbolising the Trinity) with the other two fingers folded (symbolising the two natures of Christ), rather than an open hand or extended fingers. Both forms are ancient and valid expressions of the same faith.
Why do we say "In the name" (singular) not "In the names" (plural)?
Because the three Persons of the Trinity — Father, Son, and Holy Spirit — share one divine nature, one being, and one name. The singular "In the name" confesses the unity of God: not three gods, but one God in three Persons. This is the most concise possible statement of Trinitarian monotheism.
Is the Sign of the Cross in the Bible?
The gesture itself is not described in the New Testament, but its components are: the Cross (Galatians 6:14 — "May I never boast except in the Cross of our Lord Jesus Christ") and the Trinitarian formula (Matthew 28:19 — "baptising them in the name of the Father and of the Son and of the Holy Spirit"). The Sign of the Cross combines these two foundational Christian realities into a single bodily prayer.
What does making the Sign of the Cross do theologically?
The Sign of the Cross performs three acts simultaneously: it confesses the Trinity (naming Father, Son, Holy Spirit), commemorates the Redemption (tracing the Cross on the body), and consecrates the one making it (marking the body as belonging to God). St. Thomas Aquinas taught it is effective for three reasons: it professes the Trinity, recalls the Passion, and expels temptation. St. Cyril of Jerusalem (4th century) called it 'our seal' — the Christian's identifying mark. In the Rosary it frames the entire prayer, from first word to last, as an act of Trinitarian worship.
Why do Catholics make the Sign of the Cross from left to right?
In the Latin rite, Catholics touch the left shoulder then the right when making the Sign of the Cross. Eastern Catholics and Orthodox Christians go right then left. Both traditions are ancient and both are valid. One interpretation of the Western direction: moving from the left (traditionally associated with weakness and sin) to the right (strength and righteousness) symbolises the movement from sinfulness toward salvation. Another reading: it mirrors how a priest facing a congregation would make the sign — right-to-left from the priest's perspective becomes left-to-right from the faithful's. There is no definitive theological ruling on which direction is 'correct.'
What is the Tau mark in Ezekiel and how does it relate to the Sign of the Cross?
In Ezekiel 9:4, God commands an angel to mark the foreheads of the faithful in Jerusalem with the Tau — the last letter of the ancient Hebrew alphabet, which in its oldest form was written as an X or cross shape. The Fathers of the Church, including Tertullian and Origen, identified this as a prophetic type of the Sign of the Cross. The Book of Revelation extends the image: Revelation 7:3 describes the sealing of the faithful on their foreheads as a mark of divine protection. The Sign of the Cross made at Baptism is the fulfilment of this ancient sealing: the Tau-mark of Ezekiel applied through faith in the Crucified Lord.
Is the Sign of the Cross a sacramental?
Yes. In Catholic theology, the Sign of the Cross is a sacramental — a sacred sign that produces real spiritual effects through the prayer of the Church (CCC 1667-1673). This distinguishes it from a merely symbolic gesture: it is an act of consecration, placing the person and the moment under the claim and protection of the Triune God. At Baptism, the Sign of the Cross is made on the forehead of the candidate before any other rite — making it literally the first mark of Christian identity, prior even to the water. At Confirmation, the bishop traces it again in chrism.
How did the Sign of the Cross develop historically from small to large?
The earliest attested form (1st-3rd century) was a small cross traced with the thumb on the forehead alone — a discreet mark used in daily life and at Baptism. Tertullian describes it c. 204 AD (De Corona 3) as a seal used at every turn of Christian life. After Constantine's legalisation of Christianity in 313 AD, the gesture became more public and bold, as Cyril of Jerusalem urged (c. 348 AD). The full body gesture — touching forehead, breast, and both shoulders — developed gradually and was well established in the Western Church by the early medieval period. The distinction between Western (left-to-right) and Eastern (right-to-left) forms both have ancient roots, and both are valid.
What is the triple sign made before the Gospel at Mass?
Before the proclamation of the Gospel at Mass, both the deacon or priest and the faithful make three small crosses with the thumb — on the forehead, lips, and breast — praying silently: 'May the Lord be in my mind, on my lips, and in my heart.' This triple sign is a condensed form of the Sign of the Cross applied to the three faculties engaged in receiving the Word of God: thought (forehead), speech (lips), and love (heart). It is not a modern innovation but a medieval liturgical development rooted in the same biblical theology of the forehead-sealing found in Ezekiel 9:4 and Revelation 7:3.