AD 540

Rule of Saint Benedict

Composition of the Rule of Saint Benedict (undated, c. 530–560)

The famous motto “pray and work” never appears anywhere in Benedict’s Rule.

No day, and a thirty-year window

No surviving source identifies a day — or even the year 540 — on which Benedict wrote or completed the Rule. A Benedictine scholarly reference dates the composition broadly to between 530 and 560.

Monte Cassino is the traditional and probable place of writing, but the exact place and date remain unknown, as does whether the work was written all at once.

Much of Benedict’s biography comes from Gregory the Great’s hagiographical Dialogues, written decades later, which supplies no dependable composition date.

A prologue and 73 chapters

Benedict composed a prologue and 73 chapters governing a cenobitic community — monks living in a monastery under a rule and an abbot.

The Rule calls the monastery a “school for the service of the Lord”, and expressly says it is laying down a rule for cenobites, one of the four kinds of monks it identifies.

It was not wholly original: its most important textual source was the earlier anonymous Rule of the Master, from which Benedict copied extensively, especially in the prologue and first seven chapters.

Wine, two dishes, and no knives in bed

The Rule permits a daily measure of wine, while ruefully observing that monks of Benedict’s day could not be persuaded to abstain altogether.

Two cooked dishes were placed on each table — not for luxury, but so that a monk unable to eat one could eat the other.

Monks were told to sleep clothed, but without knives at their sides, so they would not cut themselves during the night.

Sources

Researched 24 Aug 2026 10 sources not yet audited Date disputed

How this was checked

Researched from the web into a fact sheet and rewritten from that sheet. This article has not yet had an independent model audit. How the pipeline works →

Date disputed. Sources disagree; the research places it at ~0540.

What the sources leave uncertain

The exact date and place are unknown. “540” is a convenient approximation inside the better-supported 530–560 range, not a verified event year.
Whether the surviving Rule was composed as a unit or developed gradually in response to the community's needs cannot be determined. Source: https://www.newadvent.org/cathen/02436a.htm
Much of Benedict's biography comes from Gregory the Great's hagiographical Dialogues, written decades later; it does not provide a dependable composition date.