He That is Spiritual, published in 1918, is a influential devotional written by Lewis Sperry Chafer. The book is excellent for Bible teachers and students as Chafer sets out to define what it means to live a spiritual life.Lewis Sperry Chafer was an American theologian who founded the Dallas Theological Seminary. Chafer was also notable for being a strong supporter of Christian Dispensationalism in the early 20th century. Chafer's books, such as He That is Spiritual, Salvation, and True Evangelism, are still widely read by Christians of all denominations.