We live in an age of uncertainty: about ourselves, about the truths of the Christian faith, and about the future. At a time when the first-century church had been invaded by false teachers, the apostle John knew that Christians who are not sure of God's truth can wander away, never to return. He wrote to help his 'dear children', not only to know the real truth, but to be confident of it, and to rest upon it. If then, why not today?...