In the fall we often return to routines. If we're not careful we can go through daily routines at work and home without thinking of God. If we are to "eat or drink or whatever we do for the glory of God" (1 Cor. 10:31) that means in life's routines. By looking at the routines of the priests and Levites in worship we learn how to serve God in the things we do day in and day out.