"NEVER GIVE IN, never give in, never, never, never."
That admonition is attributed to Winston Churchill in a speech given during World War II.
I've come to realize that the "oomph" behind that counsel is the Almighty—God himself, the intelligence of the universe. And that's why it's heard and felt in dark times of trial in some meaningful way that we "get it." And why it fortifies us to "press on" to victory.