"When a true lover of God suffers at the hands of his fellow men, he is strengthened through the grace of the Holy Spirit and is made so truly humble and patient and peaceable that, whatever wrong or injury he suffers, he always retains his humility. He does not despise his persecutors or speak ill of them, but prays for them with pity and compassion more tenderly than for those who never harmed him. And he does indeed love them more, and more fervently desires their salvation, because he sees that he will have such great spiritual gain from their evil deed, even though they never intended that he should. But this kind of love and humility, which are beyond human nature, are only brought about by the Holy Spirit in those whom he makes true lovers of God."
Walter Hilton (ca. AD 1396), The Scale of Perfection, Book 2, 38
Hilton was an Augustinian canon and an outstanding mystic that left a legacy of writings, especially The Scale of Perfection.