Systematic Theology
Systematic theology is a discipline that seeks to summarize the Bible’s teaching on various topics by asking and answering questions such as:
What is sin? What are its many consequences?
What did Jesus accomplish by dying on a cross?
What does it mean “to repent”? What does it mean “to trust in Jesus Christ”?
Systematic theologians answer questions like these, not only to teach us as we ask such questions but also to help us teach others.*
If you are just getting started in your study of theology, start with books by Wayne Grudem:
If you have had some theological training, I recommend these concise volumes:
50 Core Truths of the Christian Faith by Gregg R. Allison (3)
Series
*40 Questions (edited by Benjamin L. Merkle) (3 or 4)
Foundations of Evangelical Theology (edited by John S. Feinberg) (4 or 5)
Misc.
Theological Essays from The Gospel Coalition
A Little Book for New Theologians by Kelly M. Kapic (2 or 3): All of life is theological, and we are all theologians, whether we realize it or not. Therefore, we should all study theology. The author explains why and how to study theology—for example, with your mind, prayer, and humility.
Kevin DeYoung’s Systematic Theology Review
* Wayne Grudem and John Frame establish these points in the introduction to their systematic theologies.