Shall not the day of the LORD be darkness, and not light? even very dark, and no brightness in it?
All Commentaries on Amos 5:20 Go To Amos 5
John Chrysostom
AD 407
This brings us to a conclusion on another matter of great importance. The observances regarding sacrifices, sabbaths, new moons, and all such things prescribed by the Jewish way of life of that day—they are not essential. Even when they were observed they could make no great contribution to virtue; nor when neglected could they make the excellent person worthless or degrade in any way the sanctity of his soul. People of old, while still on earth, manifested by their piety a way of life that rivals the way the angels live. Yet they followed none of these observances, they slew no beasts in sacrifice, they kept no fast, they made no display of fasting. They were so pleasing to God that they surpassed this fallen human nature of ours and, by the lives they lived, drew the whole world to a knowledge of God.