The purpose for In His Steps is to help those who are beginning the Christian life. J. R. Miller includes suggestions and counsel to new Christians as to what to expect from being a Christian and includes subjects such as; Uniting With the Church, Living for God, Meeting Temptation, Preparation for Trial, and more.James Russell Miller was a popular Christian author, Editorial Superintendent of the Presbyterian Board of Publication, and pastor of several churches in Pennsylvania and Illinois. He was the General field Agent for the United States Christian Commission, an organization established by the Young Men's Christian Association after the First Battle of Bull Run. Miller authored nearly 100 books and articles.