The Templar Rule: How Saint Bernard Shaped the Order

• knighttemplar
• August 26, 2026
• Categories: Templar Lifestyle & Community
• Tags: Knights Templar, Templar Faith, Templar History

The Templar Rule was not handed down by a single author, but one man did more than anyone to shape it and to sell the world on the strange new idea behind it: Bernard of Clairvaux, the Cistercian abbot later canonised as a saint. The Rule itself was drafted at the Council of Troyes in 1129, with churchmen debating clause by clause. Bernard’s influence ran through that text, and soon after he wrote a fiery treatise defending the warrior-monk. Without him, the Order might never have won the legitimacy that let it grow.

Who was Bernard of Clairvaux?

Bernard (c. 1090–1153) was the most influential churchman of his age. As abbot of the Cistercian monastery at Clairvaux, he reformed monastic life, advised popes, and preached with a force that moved kings. He was also personally connected to the Templars’ founding circle; the first Grand Master, Hugues de Payens, came from the same region of Champagne, and Bernard’s own uncle, André de Montbard, was among the early recruits.

That relationship mattered. When a small, unproven band of knight-monks needed a champion, they had access to the loudest and most respected religious voice in Latin Christendom. Bernard would later preach the Second Crusade in 1146, showing just how much sway he held over the medieval imagination, and it was to him that the young Order turned when it sought a written way of life.

The Council of Troyes, 1129

By the late 1120s the Order had existed for roughly a decade but lacked formal Church approval. Hugues de Payens travelled west to seek it, and a council of bishops and abbots assembled at Troyes in 1129. There they produced the Latin Rule, a founding code of around seventy-two clauses that turned an informal brotherhood into a recognised religious order.

The Rule borrowed from existing monastic tradition, leaning on Benedictine practice and the customs of canons, then adapted it for men who bore arms. Bernard did not dictate every line, and historians debate exactly how much he wrote, but his fingerprints and his Cistercian outlook are visible throughout in the emphasis on austerity, obedience, and unceasing prayer.

Recognition at Troyes changed everything. It meant that gifts to the Templars were gifts to a legitimate religious order, that recruits were entering a sanctioned way of life, and that bishops across Europe had reason to support them. A brotherhood that had numbered only a handful of knights now had a written constitution and the blessing of the Church, the foundation on which its rapid rise was built.

In Praise of the New Knighthood

Around 1130 Bernard wrote his most important contribution to the Templar cause, a treatise usually called De laude novae militiae, or In Praise of the New Knighthood. In it he contrasted the vain, violent secular knight with the disciplined “new” knight who fought for God alone. This was persuasion of the highest order: a theological case for why armed monks were not a contradiction but an ideal.

His most controversial argument addressed the obvious problem. Monks were forbidden to shed blood, so how could these men kill? Bernard reasoned that slaying an enemy of Christ was not homicide but malecide, the destruction of evil rather than of a man, and that a Templar who died in battle earned a martyr’s reward. Not every theologian accepted this, and modern readers rightly find it uncomfortable, but it gave the Order the moral cover it needed to flourish.

The treatise did more than argue; it painted a picture. Bernard mocked worldly knights for their long hair, gilded harness, and vanity, then held up the Templar as the true warrior, poor, plainly dressed, and fearless because he trusted God with his life. That vivid contrast gave donors and recruits an image to rally behind, and it fixed the Templar ideal for generations to come.

What the Rule actually required

The Rule bound the brothers to the three classic monastic vows of poverty, chastity, and obedience, then wrapped their days in monastic structure. Among its demands:

• Attendance at the canonical hours of prayer, from Matins before dawn to Compline at night.
• Meals taken in communal silence while scripture was read aloud, with meat limited to a few days a week.
• Plain, uniform clothing, no personal property, and strict limits on contact with women.
• Careful rules for arms, horses, and conduct, so that discipline in the cloister carried into the field.

To picture how these clauses played out hour by hour, read our account of a day in the life of a Knight Templar, where the rhythm of prayer, drill, and duty comes alive.

What united these demands was a single aim: to make the brother’s whole day an act of obedience. Silence, fixed hours, shared dormitories, and plain food were not arbitrary hardships but tools for forming men who would obey instantly in the chaos of battle. The discipline of the chapel and the discipline of the charge were meant to be one and the same virtue, practised in two very different settings.

A Rule that grew with the Order

The seventy-two clauses agreed at Troyes were only the beginning. As the Templars expanded from a Jerusalem bodyguard into an international institution with lands, castles, and thousands of members, the Rule had to grow with them. Over the following decades it was translated from Latin into French so that non-scholarly brothers could follow it, and it gathered layers of new regulation.

These additions included the Hierarchical Statutes, setting out the duties of the Grand Master, the Marshal, and other officers; detailed rules for conventual life; and a graded list of penances. A brother who lost his temper faced one penalty; one who deserted the battlefield or consorted with a woman faced expulsion. The result was a remarkably complete code governing prayer, war, property, and discipline, far beyond anything Bernard could have written alone, yet all of it resting on the austere foundation he helped lay.

Bernard’s lasting mark

Bernard’s endorsement transformed the Order’s fortunes. Recognition at Troyes plus his ringing praise brought recruits, donations, and papal favour, culminating a decade later in privileges that answered the Templars to the Pope alone. More deeply, Bernard fixed the Order’s self-image: monks first, soldiers second, whose sword served their prayer.

That double identity, faith expressed through disciplined strength, is the thread that runs from the Rule down to the mottoes brothers wore. You can see the same spirit in the phrases collected in our piece on Templar mottos on modern dog tag necklaces.

Carrying the ideal

The Rule described men who saw themselves as warriors of Christ, defined by devotion rather than conquest. That is the same idea behind our Sons of God, Warriors of Christ shirt, which puts the warrior-monk creed into everyday form.

Saint Bernard did not simply bless the Templars; he gave them a philosophy. His writing answered the hard questions, his authority opened doors, and his Cistercian austerity shaped how the brothers prayed, ate, dressed, and fought. Understand Bernard and you understand what the Order believed it was for.