There far away was the Lonely Mountain on the edge of eyesight. On its highest peak snow yet unmelted was gleaming pale. “So comes snow after fire, and even dragons have their ending!” said Bilbo, and he turned his back on his adventure.
J. R. R. Tolkein, The Hobbit
This is the Christian hope in the midst of pain and suffering; fire is quenched and even dragons have their ending.
The great dragon was hurled down—that ancient serpent called the devil, or Satan, who leads the whole world astray.