“The first angel sounded: And hail and fire followed, mingled with blood, and they were thrown to the earth; and a third of the trees were burned up, and all green grass was burned up.” Revelation 8:7.
When God confronted Adam and Eve after their sin in the Garden of Eden, see Genesis 3:1-24, He pronounced a series of curses and punishments; within this God made reference to the coming Christ who was to take away the sin of the world.
