Children should participate in church, family devotions, and prayers as soon as they can sit up. They won’t learn the how-to of a relationship with God if you don’t model it, anymore than they will learn proper table manners by sitting in the kitchen while you eat in the dining room. They should be included in faith activities from the moment of conception. If YOU are living a faith-filled life, they will come naturally into faith, and it will be an integral part of them, just as breathing or their hearts beating. If you haven't been living your life this way, start now.