They saw that the fire had not harmed their bodies, nor was a hair of their heads singed; their robes were not scorched, and there was no smell of fire on them.
All's well that ends well. Yes, it is so in Daniel chapter 3. But this does not mean that God will always protect all Christians from sorrow and suffering. The Bible exhorts us to prepare for more suffering. The fiery furnace will always keep burning. Think about the stone ovens of Egypt, where the Israelites endured much suffering. Think about the Christians going to the stake, or the silence of the prisons and concentration camps in Russia and China. The Christians in Islamic countries are continually confronted with the ‘fiery furnaces' of hanging and decapitation. The Bible warns us that the Church of the future will face the fiery furnace again.
All's well that ends well? The opposite seems to happen. And yet ... the fire from the furnace did not burn the men. The only things which were consumed were the ropes with which they were bound, enabling them to walk around freely in the fire. We have not been spared from the fire, but the flames will only consume that which is to be removed from our lives.
Flames of blessing - they only burn what must be destroyed so that we may be free, truly free.