Isaiah 60:20

Thy sun shall no more go down -There shall be no total and long night of calamity, error, and sin. This is designed to describe the flourishing and glorious state of the church. It, of course, does not mean that there should be no times of calamity, no period of ignorance, no scenes of persecution; but it means that there should not be total night. Truth should reign on the earth, and there never would be a time when the light of salvation would be extinct. There never would be a time like that when Jerusalem was wholly destroyed, and a long total night came over the land.