“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. Then the second angel sounded: And something like a great mountain burning with fire was thrown into the sea, and a third of the sea became blood; and a third of the living creatures in the sea died, and a third of the ships were destroyed.” Revelation 8:7-9.
“And to the angel of the church in Thyatira write, ‘These things says the Son of God, who has eyes like a flame of fire, and His feet like fine brass: ‘I know your works, love, service, faith, and your patience; and as for your works, the last are more than the first.’” Revelation 2:18-19.