John Chrysostom, on Ps 50:10

“To my hearing thou shalt give joy and gladness: and the bones that have been humbled shall rejoice.”

“It would be better to be defiled with unclean mud than with sins. A person who is defiled with mud can wash it off in a short time and become like one who had never fallen into that mire at all. But one who has fallen into the deep pit of sin has contracted a defilement that is not cleansed by water but needs a long period of time, strict repentance, tears and lamentations and more wailing—and that more fervent than we show at the loss of one of our dearest friends. For this defilement attaches to us from without, wherefore we also quickly put it away, but the other is generated from within, where it is more difficult to wash it off and to cleanse ourselves from it. "For from the heart" (it is said) "proceed evil thoughts, fornications, adulteries, thefts, false witnesses." Thus, the prophet also said, "Create in me a clean heart, O God." And another prophet said, "Wash your heart from wickedness, O Jerusalem." (You see that it is both our [work] and God's.) And again, "Blessed are the pure in heart, for they shall see God."”

Imported from an open dataset — not yet checked against the printed edition.