Waiting in line for something can be disconcerting. Does it seem to you that when you're waiting in line and there are two lines, that the other line is moving faster? Do you ever change your mind when you were planning to do something and upon discovering a long line, you changed your mind? How about after you die, you find yourself in a line? Can you imagine where you've arrived?
In our A.D.D. world, waiting is less and less expected and mostly unappreciated. The expression, "I can't wait to..." is a common phrase in most of our vocabularies. So when the Scriptures call us to wait upon the Lord, how do we do it? I suggest we do so not as if we were sitting on our hands in a waiting room, but rather as a waiter in a restaurant, serving Him. Waiting upon the Lord is our service.
Psalms 33:20 (NIV)
20 We wait in hope for the LORD; he is our help and our shield.