""The Tests of Life: A Study of the First Epistle of St. John: Being the Kerr Lectures for 1909"" is a book written by Robert Law and published in the year 1909. The book is a detailed study of the first epistle of St. John, a letter found in the New Testament of the Christian Bible. The author explores the various tests or criteria that Christians can use to evaluate their faith and ensure that they are living according to God's will. The book is...