Macarius the Younger
[1] A youth named Macarius, when he was about eighteen years old, as he played with his comrades by the lake called Maria, being in charge of animals, unwittingly committed a murder. And saying nothing about it to any one he took to the desert and became so afraid both of God and man that he lost all feeling and remained three years in the desert without a roof to his head. The land in these parts is rainless, and all men know this, some from hearsay, others from personal experience. [2] This man afterwards built himself a cell. And having lived a further twenty-five years in that cell he was counted worthy of the gift of blowing away demons; all his pleasure he found in solitude. Having spent a long while with him, I inquired how he felt on the subject of his sin of murder. He declared that so far from grieving he actually gave thanks for the murder, since the murder unwittingly committed proved the occasion of his salvation. [3] And, bringing testimony from the Scriptures, he used to say that Moses would not have been accounted worthy of the divine vision and so great a gift and the writing of the holy words, unless he had fled to Mount Sinai in fear of Pharaoh owing to the murder which he had committed in Egypt. I say this, not to lead any one to commit murder, but to show that there are virtues due to circumstances, when a man does not come to the good of his own accord. For some virtues are chosen voluntarily, others are due to circumstances.
Source: Clarke, W. K. Lowther, trans. 1918. The Lausiac History of Palladius. London: Society for Promoting Christian Knowledge. Pages 69-70.