The fourth angel sounded his trumpet, and a third of the sun was struck, a third of the moon, and a third of the stars, so that a third of them turned dark. A third of the day was without light, and also a third of the night.
13 As I watched, I heard an eagle that was flying in midair call out in a loud voice: “Woe! Woe! Woe to the inhabitants of the earth, because of the trumpet blasts about to be sounded by the other three angels!” (Revelation 8:12-13 NIV)
At this point in the apocalypse things might seem bad, but now we are warned that they are going to get really bad. The next punishments that God brings on the planet in the following verses are truly unbearable, and yet mankind at large will be forced to bear them because they refused to repent and follow the Law of love.