On my way to a conference in Colorado, I was driving uphill along a major interstate when I overtook a freight train going the same direction at a slower speed. The train was being pushed uphill by two locomotives that sounded as if they were straining at full power. I'm a flatlander from the Midwest. Is this how trains move in mountainous terrain? I wondered.

A few minutes later, I gradually came alongside the front of the nearly mile-long string of cars. There I found five more locomotives pulling the train. Seven engines in all! Where I come from, I rarely see more than three. That train was a lesson for me. I had been under serious strain for some time. I was feeling tired and was wondering whether I could persevere under the pressure. How like God, I thought. When I am pushing a load uphill with all the strength I have and feel like my energy level is depleted, he wants me to know that he is in the lead pulling with power far greater than mine.