They were willing to DIE for their faith. They KNEW that GOD could save them, but if not....
In the spring of 1940 the German army relentlessly beat back British troops from the mainland. As they retreated through Belgium, Winston Churchill addressed Parliament to prepare the country for the hard loss of these troops. The Germans pushed the soldiers right onto the beaches. Germany paused for a moment before delivering the final blow of annihilation to the 350,000 men stranded there. The British people anxiously awaited word of their fate.
As they did, from that little place known as Dunkirk, came a three word radio transmission, But if not.
It was a message which comes from our text today. The God we serve is able to save us from the furnace and he will rescue us from your hand, O king. But if not, we want you to know, we will not serve your gods. (Daniel 3:18)
These words ennobled the British population. Their heroes courage turned them into heroes who launched a 700 boat armada that rescued their brethren from the jaws of death.
Since your post followed my reference of 4:17 with a cryptic "...but if not...", you might understand why I was left to wonder.
Now that you provided some context, I do recall Churchill's address. However, the text you included is not "Churchill's speech" as you indicated. Rather, it appears to be the introduction to a sermon by a Pastor Jeff Wood, wherein he merely mentioned Churchill's address.
If by that, you meant to imply my inability to decipher your previous post is symptomatic of our nation's problems, I would recommend gathering additional information before passing such judgment.