by Peter J. Leithart At the center of the Sermon on the Mount, Jesus teaches about three duties of Jewish piety – alms, prayer, and fasting. Regarding the last, He says, “when you fast, do not put on a gloomy face as the hypocrites, for they render their faces unrecognizable in order to be seen fasting by men. . . . But you, when you fast, anoint your head, and wash your face, so that you may not be seen... Read more