Wednesday, September 2, 2015

Why Bother with Systematic Theology?

There have been a few posts lately on what is systematic theology and the importance of it. I know theology scares some people because they think it is reserved for those in the ministry or students attending seminary. Yes, pastors, teachers, and seminary students need to study theology, however, so do all Christians who seek to know God and study the Bible.

Before we go any further, I am sure you are wondering what is systematic theology? Here is how one website defines it:

Systematic theology is...the division of theology into systems that explain its various areas. For example, many books of the Bible give information about the angels. No one book gives all the information about the angels. Systematic theology takes all the information about angels from all the books of the Bible and organizes it into a system called angelology. That is what systematic theology is all about—organizing the teachings of the Bible into categorical systems.


Why is studying systematic theology important? Kevin DeYoung gives us 6 reasons why we should study it:

Reason 1: The Bible’s interest in truth demands it. Systematic theology is nothing if it not the pursuit of truth, and truth is essential to biblical Christianity. Jesus said the truth will set you free (John 8:32). The Holy Spirit is called the Spirit of truth (John 14:17). The work of the Holy Spirit was to guide the apostles into all truth (John 16:13). Eternal life is to know the only true God (John 17:3). Jesus prayed that we would be sanctified in the truth (John 17:17). Paul warned that for those who do not obey the truth there will be wrath and fury (Rom. 2:8). We are to be transformed by understanding the truth (Rom. 12:2). People can go to hell for preaching what is not true (Gal. 1:8). People within the church should be corrected when they believe the wrong things. “[An elder] must hold firmly to the trustworthy message as it has been taught, so that he can encourage others by sound doctrine and refute those who oppose it” (Titus 1:9). People are sometimes to be kept out of your house for believing what is not true (2 John 9-10). The wicked perish because they refused to love the truth (2 Thess. 2:10). The workman of God must rightly handle the word of truth (2 Tim. 2:15). In other words, no Christian worthy of the name should be indifferent to the pursuit of right doctrine. As Louis Berkhof put it, “They who minimize the significance of the truth, and therefore ignore and neglect it, will finally come to the discovery that they have very little Christianity left” (Systematic Theology, 29).

Reason 2: Our view of Scripture demands it. All of Scripture is breathed out by God (2 Tim. 3:16). This means that everything in the Bible matters. It also means that everything in the Bible possesses a fundamental unity, coming as it does from the same author (Matt. 19:4-6; Hebrews 3:7; 2 Peter 1:21). Systematic theology seeks to make the comprehensive unity seen and savored.

Reason 3: Realism about the human intellect demands it. One way or another, we will come to conclusions about the most important religious questions. Who was Jesus? What is the human predicament? Is there a hell? How can we be saved? How should we treat each other? What does it mean to be a good person? Why is there something rather than nothing? As soon as we set out to answer these questions we are engaging in systematic theology. The human mind can’t help but synthesize and organize.

Reason 4: The history of the church demands it. Why can’t we just let the Bible speak for itself? Because that’s not what we see in the Bible or in the early church. In Nehemiah 8:8, the leaders “read from the book, from the Law of God, clearly, and they gave the sense, so that the people understood the reading.” In 1 Corinthians 15, Paul refers to the tradition they had received from him. God has always given his people teachers to not only read Scripture but to communicate and guard the truth of Scripture (2 Tim. 1:13-14). This is why the early church naturally wrote creeds and confessions. They did not consider it sub-biblical to explain, defend, and protect the truths that were handed down to them in the Bible.

Reason 5: The unity of the church demands it. True ecumenicity is not possible apart from robust theological fidelity. Church unity requires doctrinal agreement: “There is one body and one Spirit-just as you were called to the one hope that belongs to your call-one Lord, one faith, one baptism, one God and Father of all, who is over all and through all and in all” (Eph. 4:4-6). How can we contend for the faith once for all delivered to the saints (Jude 3) if we do not have a deep understanding of that faith?

Reason 6: The duty of the church demands it. Why waste time on systematic theology when there are people who need to hear the gospel?! Because those people need to hear the true gospel. If we are to proclaim the message, we must know what that message is. We owe it each other, we owe it to other churches, and we owe it to the world to give a clear articulation of our faith. “An open statement of the truth” is what Paul called it (2 Cor. 4:2). “The Church of Jesus Christ,” Berkhof observed, should never seek refuge in camouflage, should not try to hide her identity” (31).Clarity requires carefulness, carefulness requires precision, and precision requires systematic theology. Get into it. Stick with it. Pass it on.


Studying theology will shape us and even challenge us. Yes, it is a discipline, but it is worth it. Let me give you a few good resources that will aid you in studying systematic theology:

The ESV Study Bible

Systematic Theology: An Introduction to Biblical Doctrine by Wayne Grudem

God Is Love: A Biblical and Systematic Theology by Gerald Bray

Everyone's a Theologian: An Introduction to Systematic Theology by R.C. Sproul

Systematic Theology: An Introduction to Christian Belief by John Frame (I am currently reading this book)

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