Lewis Sperry Chafer 
He that is Spiritual [EPUB ebook] 

‘He that is Spiritual’ defines true Christian living and unpacks the Bible concerning spirituality: what it is and how it is secured. Few books have been more warmly received by Bible teachers and students. Nothing could be more important to Christians than the theme of this book. Its sound teaching corrects many false impressions and presents a scriptural pattern for the full life in Christ.
Written by Lewis Sperry Chafer, the founder and first president of the Dallas Theological Seminary. He served as a Professor of Systematic Theology since its beginning in 1924 and was editor of Bibliotheca Sacra from 1940 to the time of his death in 1952.
‘His leading is only for those who are already committed to do as He may choose. To such it may be said: ‘God is able to speak loud enough to make a willing soul hear.’
—Lewis Sperry Chafer (He That Is Spiritual: A Classic Study of the Biblical Doctrine of Spirituality)