Lewis Sperry Chafer (1871–1952)

An excellent study on what it means biblically to be controlled by the Spirit, something that every single Christian from Paul to me and you should be. forget about "speaking in tongues" or being "slain in the Spirit" the Bible teaches that to be controlled by the Spirit is to evidence the fruit of the Spirit, to show a Christ like character to both saved and unsaved alike.
Buy the book, read it, apply it to your life and reveal Christ in a fallen world.

Excellent source for learning of Dispensational Christianity. Dr. Chafer is looked down upon today but this work will stand the test of time.

I started reading Systematic Theology when I was 18 and for me was a life changing experience. These books brought in a passion for theology in my life.

This book is part of my collection that really focuses in on Biblical Commentary more than anything else (including some well known authors in the theological world). All of these books haven't been read cover to cover, but I've spent a lot of time with them and they've been helpful in guiding me through difficult passages (or if I desire to dig deeper).