"Woe to you who desire the day of Yahweh! Why do you long for the day of Yahweh? It is darkness, And not light.
The true origin of the theology of the day of the Lord must be looked for in the revelation of God Himself to his people; and our inability at the present time to pinpoint the time and place and name of the particular prophet who first revealed the mind of God with reference to it does not at all diminish the truth and authenticity of the doctrine itself.  Amos was inspired of God, and his acknowledgment of the popular belief in the day of the Lord is proof enough of the validity of the doctrine.  What Amos condemned in the words of these verses (Amos 5:18-20) was not the public confidence in the coming of the day of the Lord, but Israel's perversion of the doctrine, lowering the conception of it to that of a military victory for the Israelites.  Israel's view of that day has been described thus: