The following rules are excerpted from The Rule of the Templars by J. M. Upton-Ward, (Woodbridge: Boydell Press, 2008).
2. Above all things, whosoever would be a knight of Christ, choosing such holy orders, you in your profession of faith must unite pure diligence and firm perseverance, which is so worthy and so holy, and is known to be so noble, that if it is preserved untainted for ever, you will deserve to keep company with the martyrs who gave their souls for Jesus Christ. In this religious order has flourished and is revitalized the order of knighthood. This knighthood despised the love of justice that constitutes its duties and did not do what it should, that is defend the poor, widows, orphans and churches, but strove to plunder, despoil and kill. God works well with us and our savior Jesus Christ; He has sent his friends from the Holy City of Jerusalem to the marches of France and Burgundy, who for our salvation and the spread of the true faith do not cease to offer their souls to God, a welcome sacrifice.
9. You who renounce your own wills, and you others serving the sovereign king with horses and arms, for the salvation of your souls, for a fixed term, strive everywhere with pure desire to hear matins and the entire service according to canonical law and the customs of the regular masters of the Holy City of Jerusalem. 0 you venerable brothers, similarly God is with you, if you promise to despise the deceitful world in perpetual love of God, and scorn the temptations of your body: sustained by the food of God and watered and instructed in the commandments of Our Lord, at the end of the divine office, none should fear to go into battle if he henceforth wears the tonsure.
11. If any secular knight, or any other man, wishes to leave the mass of perdition and abandon that secular life and choose your communal life, do not consent to receive him immediately, for thus said my lord St Paul: Probate spiritus si ex Deo sunt. That is to say: ‘Test the soul to see if it comes from God.’ Rather, if the company of the brothers is to be granted to him, let the Rule be read to him, and if he wishes to studiously obey the commandments of the Rule, and if it pleases the Master and the brothers to receive him, let him reveal his wish and desire before all the brothers assembled in chapter and let him make his request with a pure heart.
66. We command all secular knights who desire with a pure heart to serve Jesus Christ and the house of the Temple of Solomon for a fixed term to faithfully buy a suitable horse and arms, and everything that will be necessary for such work. Furthermore, we command both parties to put a price on the horse and to put the price in writing so that it is not forgotten; and let everything that the knight, his squire and horse need, even horseshoes, be given out of fraternal charity according to the means of the house. If, during the fixed term, it happens by chance that the horse dies in the service of the house, if the house can afford to, the Master should replace it. If, at the end of his tenure, the knight wishes to return to his own country, he should leave to the house, out of charity, half the price of the horse, and the other half he may, if he wishes, receive from the alms of the house.
67. As the squires and sergeants who wish to serve charity in the house of the Temple for the salvation of their souls and for a fixed term come from divers regions, it seems to us beneficial that their promises be received, so that the envious enemy does not put it in their hearts to repent of or renounce their good intentions.