The manner in which Luke identifies in detail the time when John the Baptist started his preaching shows that Luke regarded this as an historic moment. Per-haps you can recall in detail the time and the circumstances of particularly signifi-cant moments in your life?
John called people to give expression to their desire for a change of heart by a symbolic baptism in the Jordon. When have you found it helpful to symbolize your desire to change for the better by some symbolic gesture, e.g. burning a packet of cigarettes, sending a card, mak-ing a phone call etc?
Behind the quotation from Isaiah lies the practice of preparing festival routes for religious celebrations. Isaiah visulises such a celebration to celebrate the return of the Israelites to Jerusalem. Can you recall a particularly memorable Advent? What happened? Think of what you can do this Advent.