Let us act in accordance with that saying of the Prophet; “I have said: I will keep my ways, that I offend not with my tongue. I have been watchful over my mouth: I held my peace and humbled myself, and was silent from speaking even good things.”115 If therefore, according to this saying of the Prophet we are at times to abstain, for silence sake, even from good talk, how much more ought we to refrain from evil words, on account of the penalty of sin. Therefore, because of the importance of silence, let leave to speak be seldom given, even to perfect disciples, although their words be of good and holy matters, tending unto edification; because it is written: “In much speaking, thou shalt not escape sin.”116 And in another place: “Death and life are in the hands of the tongue.”117 For it befitteth a master to speak and teach; and it beseemeth a disciple to hold his peace and listen.
If, therefore, anything must be asked of the Prior, let it be done with all fitting humility and the subjection of reverence. But as for buffoonery, idle words, or such as move to laughter, we utterly condemn and exclude them in all places, nor do we allow a disciple to open his mouth to five them utterance.