A contemporary pilgrim to Jerusalem wrote of the Holy Order:
“The Templars are most excellent soldiers. They wear white mantles with a red cross, and when they go to war a standard of two colors called balzaus is borne before them.
They go in silence. Their first attack is the most terrible. In going, they are the first. In returning – the last. They await the orders of their Master. When they think fit to make war and the trumpet has sounded, they sing in chorus the Psalm of David, “Not unto us, O Lord” kneeling on the blood and necks of the enemy, unless they have forced the troops of the enemy to retire altogether, or utterly broken them to pieces. Should any of them for any reason turn his back to the enemy, or come forth alive [from a defeat], or bear arms against the Christians, he is severely punished; the white mantle with the red cross, which is the sign of his knighthood, is taken away with ignominy, he is cast from the society of brethren, and eats his food on the floor without a napkin for the space of one year. If the dogs molest him, he does not dare to drive them away. But at the end of the year, if the Master and brethren think his penance to have been sufficient, they restore him the belt of his former knighthood. These Templars live under a strict religious rule, obeying humbly, having no private property, eating sparingly, dressing meanly, and dwelling in tents.”
https://templarhistory.com/the-templar-beauseant/