Isaiah 58:5
Douay-Rheims
Is this such a fast as I have chosen: for a man to afflict his soul for a day? is this it, to wind his head about like a circle, and to spread sackcloth and ashes? wilt thou call this a fast, and a day acceptable to the Lord?
John Cassian
You see then that fasting is certainly not considered by the Lord as a thing that is good in its own nature, because it becomes good and pleasing to God not by itself but by in conjunction with other works. Again, in light of surrounding circumstances it may be regarded as not merely vain but actually hateful, as the Lord says: "When they fast, I will not hear their prayers."
Source details
A.D. 435 · on Isa 58:5 (CONFERENCE 21:14)
Imported from an open dataset — not yet checked against the printed edition.