The fourth degree of humility is that he hold fast to patience with a silent mind when in this obedience he meets with difficulties and contradictions and even any kind of injustice, enduring all without growing weary or running away. For the Scripture says, "The one who perseveres to the end, is the one who shall be saved" (Matt. 10:22); and again "Let your heart take courage, and wait for the Lord" (Ps. 27:14)!
from the rule of St Benedict, Ch 7 'On Humility'