c. 386–430
For as it is true that, in the words of the apostles, “it is evil for that man who eateth with offence,” it is equally true that it is evil for that man who fasteth with offence. Let us not therefore be like those who, seeing John the Baptist neither eating nor drinking, said, “He hath a devil;” but let us equally avoid imitating those who said, when they saw Christ eating and drinking, “Behold a man gluttonous, and a winebibber, a friend of publicans and sinners.” After mentioning these sayings, the Lord subjoined a most important truth in the words, “But Wisdom is justified of her children;” and if you ask who these are, read what is written, “The sons of Wisdom are the congregation of the righteous:” they are they who, when they eat, do not despise others who do not eat; and when they eat not, do not judge those who eat, but who do despise and judge those who, with offence, either eat or abstain from eating.
Augustine of Hippo, Augustine, Letters of St. Augustin 1.36 (Nicene and Post-Nicene Fathers, Series 1, Vol. 1)