Do you see that our practice has more power to do good? By practice I mean, not your fasting, nor yet your strewing sackcloth and ashes under you, but if you despise wealth, as it ought to be despised; if you be kindly affectioned, if you give your bread to the hungry, if you control anger, if you cast out vainglory, if you put away envy.
So He Himself used to teach: for, ‘Learn of me,’ says He, ‘for I am meek and lowly in heart.’ [Matthew 11:29] He did not say, ‘for I fasted,’ although surely He might have spoken of the forty days, yet He says not this; but, ‘I am meek and lowly in heart.’ And again, when sending them out, He said not, ‘Fast,’ but, ‘Eat of all that is set before you.’ With regard to wealth, however, He required of them great strictness, saying, ‘Provide not gold, or silver, or brass, in your purses.’ [Matthew 10:9]
And all this I say, not to depreciate fasting, God forbid, but rather highly to commend it. But I grieve when other duties being neglected, you think it enough for salvation, having but the last place in the choir of virtue. For the greatest thing is charity, and moderation, and almsgiving; which hits a higher mark even than virginity.
St. John Chrysostom
Homily 46, Homilies on the Gospel of St. Matthew