For nothing is so acceptable to God as to number one’s self with the last. This is a first principle of all practical wisdom. For he that is humbled, and bruised in heart, will not be vainglorious, will not be wrathful, will not envy his neighbor, will not harbor any other passion. For neither when a hand is bruised, though we strive ten thousand times, shall we be able to lift it up on high. If therefore we were thus to bruise our heart likewise, though it were stirred by ten thousand swelling passions, it could not be lifted up, no, not ever so little. For if a man, by mourning for things pertaining to this life, drives out all the diseases of his soul, much more will he, who mourns for sins, enjoy the blessing of self-restraint.
Homilies on Matthew
Homily 3; Matthew 1:1