What if a brother insults the worshipful master behind his back inside the lodge

Want of reverence for and obedience to Masonic superiors constitutes an offense subject to Masonic penal jurisdiction 2. Inside the lodge, brethren are strictly prohibited from engaging in unseemly talk, private conversations, or covert discussions—traditionally termed "private committees"—without the Master's permission 12.

Because the Master holds supreme authority over the governance and discipline of his lodge, no appeal against his rulings or authority may be taken to the lodge members 32. Disrespect or insubordination toward the Master, whether expressed directly or covertly during a communication, violates both the established rules of order and the general duty of obedience owed to Masonic rulers 12.

The consequences for such misconduct depend on the severity of the offense and the proceedings taken against the brother 2. Masonic law prescribes a scale of punishments:

Censure: The mildest penalty, expressing the lodge's disapproval. It does not affect standing or rights and may be voted on a mere motion or as the outcome of a trial 2.

Reprimand: A formal punishment resulting from a regular trial, delivered either privately by the Master or publicly before the lodge 2.

Exclusion or Expulsion: Graver penalties reserved for serious or persistent misconduct, carrying suspension or total forfeiture of Masonic rights and privileges 2.