Walk through Amos, verse by verse, with the great Bible Commentaries of Matthew Henry (1662 - 1714) & Adam Clarke (1760 - 1832)
5:20
{Whether the day of the Lord shall not be darknesses, and not light; and mist, and not shining therein? } Wycliffe's Bible
5:20
Shall not the day of the LORD be darkness, and not light? even very dark, and no brightness in it?
KJV
It is madness therefore to defy the day of the Lord.