The disciples asked Jesus to teach them to pray, and this prayer was His answer. Does it matter if we pray it? Would He teach it if it didn't? What if we don't pray it? Does it make any difference? If you had to make a short list of the most important lessons you have learned in life, what would be on it? If I had to make such a list, I would put praying the Lord's Prayer up near the top. There can be hundreds of books on the Lord's Prayer, but if people aren't praying the prayer and churches and pastors aren't telling their people to do just that, then I would say that we need at least one more book on the subject.