Bomb on bus
God wants everyone to be saved. But on his terms.
It’s like the movie “Speed”: (per Wikipedia) Dennis Hopper’s character “sets up a bomb on a city bus that … must keep moving above 50 miles per hour to keep it from exploding.”
God wants everyone to be saved in the same sense that Dennis Hopper’s character in the movie wants everyone on the bus to survive. If everyone does exactly as he says, no one gets hurt.