Prayer:Crux sacra sit mihi lux
Stored: Crux sacra sit mihi lux
| Crux sacra sit mihi lux | |
|---|---|
| Author | Unknown |
| Purpose | |
| Recipient | |
| Liturgical Context | |
| Prayer Type | |
| Origin | |
| Length | |
| Season | |
| Language | English |
| Approval | None |
| Tags | |
| Added on | 2026-08-13 |
The Crux sacra sit mihi lux is an ancient exorcistic verse attributed to Saint Benedict of Nursia (c. 480–547), the father of Western monasticism. It is most widely known as the inscription found on the reverse of the celebrated Medal of Saint Benedict, surrounding the cross that forms the central image of that side of the medal. For centuries the faithful have treasured this prayer as a powerful invocation of the Holy Cross against every form of evil, temptation, and the influence of the devil.
The text is composed in rhyming Latin verse, and each of its six lines begins with one of the letters found on the arms and quadrants of the Benedictine cross — V.R.S.N.S.M.V. — which themselves form the abbreviations: Vade Retro Satana, Nunquam Suade Mihi Vana; Sunt Mala Quae Libas, Ipse Venena Bibas. This elaborate symbolic layering of letter, image, and word reflects the deeply sacramental sensibility of the Benedictine tradition and has made the prayer inseparable from the devotion to the Medal of Saint Benedict itself.
The prayer expresses total reliance on the Holy Cross as light and guide, and categorically rejects Satan's every suggestion and enticement. It holds an important place in the broader Catholic tradition of exorcistic prayer and has been used by clergy and laity alike as a daily protection against spiritual harm.
The Prayer
In Latin (Traditional Text)
- Crux sacra sit mihi lux,
- Non draco sit mihi dux.
- Vade retro Satana,
- Nunquam suade mihi vana.
- Sunt mala quae libas,
- Ipse venena bibas.
In English (Translation)
- May the holy Cross be my light;
- Let not the dragon be my guide.
- Begone, Satan;
- Never tempt me with vain things.
- What you offer is evil;
- Drink the poison yourself.
The Abbreviations on the Medal
The letters inscribed on the arms of the cross on the Medal of Saint Benedict are:
- C.S.S.M.L. — Crux Sacra Sit Mihi Lux
- N.D.S.M.D. — Non Draco Sit Mihi Dux
And in the four quadrants of the cross:
- V.R.S. — Vade Retro Satana
- N.S.M.V. — Nunquam Suade Mihi Vana
- S.M.Q.L. — Sunt Mala Quae Libas
- I.V.B. — Ipse Venena Bibas
History and Background
The origins of the Crux sacra sit mihi lux verse are rooted in the broader medieval tradition of associating Saint Benedict with powerful protection against evil. Saint Benedict's life, as recorded by Pope Saint Gregory the Great in the Dialogues (Book II, c. 593–594), repeatedly recounts miraculous deliverances from demonic attack, including several instances in which the sign of the cross was the decisive instrument of protection. It was therefore natural that subsequent centuries would crystallize this protective charism into a formal verse and symbolic medal.
The Medal of Saint Benedict in its recognizable form can be traced to the eleventh century, when a medal bearing the image of Saint Benedict holding a cross was found at the Abbey of Monte Cassino around 1880 — though its use in simpler forms is attested much earlier. The specific inscription of the exorcistic verse on the reverse of the medal appears to have become standardized by the seventeenth century, and a crucial interpretive breakthrough came in 1647 at the trial of alleged witches in Natternberg, Bavaria, when witnesses attributed their protection to a medal bearing these letters. When the Benedictines of Metten Abbey were called to explain the abbreviations, they produced a manuscript from 1415 that contained the full verse, confirming its antiquity.
In 1742, Pope Benedict XIV granted a special papal blessing to the Medal of Saint Benedict and formally approved the exorcistic inscription and its use, giving the medal and its prayer the Church's authoritative endorsement. The prayer and medal have since been used throughout the Catholic world, and the text of the Crux sacra sit mihi lux is considered one of the most concise and potent expressions of faith in the power of the Cross over evil.
The verse belongs to the genre of deprecatory exorcism — not a formal liturgical exorcism reserved to bishops and certain priests, but a personal prayer of protection addressed partly to God and partly as a rebuke directed at Satan. Its use by laypeople has always been encouraged, particularly in devotion to the medal.
How to Pray / Devotional Use
The Crux sacra sit mihi lux is most commonly prayed in connection with wearing or venerating the Medal of Saint Benedict. The following guidance reflects traditional Benedictine and popular Catholic practice:
Daily Use The verse may be recited each morning as a prayer of protection for the day ahead, particularly when facing temptation, spiritual dryness, or situations of known moral or physical danger. Many Catholics trace the sign of the cross while reciting the prayer, mindful that the cross is the central image the prayer invokes.
Blessing of Objects and Places Priests following the traditional Benedictine usage have incorporated this prayer into the blessing of the Medal of Saint Benedict. When a blessed medal is placed in a home, workplace, or vehicle, the prayer is often recited as an act of entrustment to the protection of the Holy Cross through the intercession of Saint Benedict.
In Times of Temptation or Fear The line Vade retro Satana — "Begone, Satan" — echoes the words of Our Lord Himself in the Gospels (cf. Matthew 16:23) and may be prayed with confidence whenever one feels the assault of temptation, fear, despair, or spiritual oppression. The prayer is not a magical formula but an act of faith in Christ's victory over evil, mediated through the sign of the Holy Cross.
In Conjunction with the Liturgy of the Hours Monasteries and individuals following the Rule of Saint Benedict may incorporate the prayer into Compline or other hours as part of the concluding prayer for protection during the night, a time traditionally considered particularly susceptible to spiritual attack.
Recommended Posture Traditionally, this prayer is recited while holding or touching a blessed Medal of Saint Benedict, making the sign of the cross at its beginning, and concluding with a brief petition for the intercession of Saint Benedict himself.