When you're in the middle of an ordinary trip, it's fairly easy to know approximately how far you've come and how far you have to go. Even in an airplane, you can tell when you're halfway to your destination if you've been traveling for two hours on a flight that will take four.
It would be nice if all journeys were that easy to chart. There are times in our lives when we'd sure like to know precisely how things are going to develop and finally work out. Or if we've been praying awhile about something, wouldn't it be nice to know exactly how far we've come and just how close we are to seeing the answer to our prayers?
The Bible character Moses certainly couldn't have known the extent or details of his journey as he led the children of Israel through the wilderness to the Promised Land. He really had to trust God at every step. And there were things he gave up in order to have that trust.