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Christian Discipleship: Four Domains of Knowledge

Brothers and Sisters in Christ,


The New Hope Academy motto reads: Christian Academics for the Local Body of Christ. But, what does "Christian Academics" consist of, and how does it apply to our role as becoming disciples of our Master, Jesus Christ?


While there are a number of areas of knowledge one can study that may be helpful to learning more about God and His creation, broadly speaking there are four major domains of knowledge that we can identify, and that Christians must engage with, should they desire a deeper knowledge and love of the Lord. Moreover, knowledge, both propositional and personal, increases our capacity to fulfill our mission of spreading the Gospel to every tribe, tongue and nation.


As we pursue becoming more well-rounded and deeper thinkers about God’s Word, God’s work, and God’s world, it is helpful therefore to have some method of organizing this spiritual endeavor. The four primary knowledge domains we must engage with in order to achieve our goal of becoming disciplined followers of Christ are: Theology (Systematic and Biblical), Apologetics (Philosophical & Historical), Church History (pre-Reformation & Reformational), and Spiritual Formation.


Since these are very broad categories, it is wise to point out that within each there is an abundance of subsets one could study. For example, one does not just study Biblical Theology by reading the Bible in English over and over. Rather one studies Pauline theology specifically, or Ancient Near Eastern languages like Ugaritic, or Greco-Roman history and philosophy, etc. All of these sub-disciplines become extremely relevant to becoming an expert in the larger domain of Biblical Theology. All of these subsets of knowledge lend to us knowing the Bible better, and knowing the Bible better clearly helps us know its Author better.


For now however, let's consider just these broader categories in order to start focusing our efforts, in particular our personal reading, as we train our minds and hearts for the sake of the Gospel call. In this first of four blog posts on these domains, let's first look at our primary discipline of Theology.



St. Augustine: The First Systematic Theologian


Category 1: Systematic & Biblical Theology


Theology is our primary pursuit. The study of God is what we are essentially about as Christ followers. However, Category 1 encompasses two kinds of theology, both with their own distinctive approaches to the ultimate goal of knowledge of God. These are Systematic and Biblical theology.


A. Systematic Theology


Systematic Theology really takes off in the early Middle Ages, with the publication of Peter Lombard’s Four Books of Sentences written sometime prior to 1160, and which dominated systematic theology until the Protestant Reformation. Before Lombard's Sentences, St. Augustine was the primary systematic theologian of the Western Church, and his theology still impacts us today, and that for good reason. After Augustine and Peter Lombard, Thomas Aquinas was the greatest pre-Reformation systematic theologian in Church History, writing his Summa Theologica in mid-13th century. The earliest systematic theological writings that were particularly Lutheran/Reformational were composed by Philip Melanchton, Luther’s close associate. So before the Reformation, the main systematic theologies that influenced the Church's doctrine and practice were developed by Augustine, Peter Lombard, and Thomas Aquinas. Melanchton was the first Lutheran systematic theologian after Martin Luther's "break" with the Roman version of the church.


John Calvin, however, was the first real, complete Reformation systematic theologian (Institutes of the Christian Religion, 1559), and set the stage for some of the best Protestant theological writing in the church’s history by 17th century thinkers such as Francis Turretin, John Owen, Richard Baxter, and Stephen Charnock. In the 18th and 19th centuries the Protestant tradition of systematic theology was carried forward in the Americas by men like John Wesley, Jonathan Edwards, W.T.G Shedd, Charles Hodge, and B.B. Warfield.


Finally in the 20th century, there are three German thinkers whose work dominates academic theology, greatly shaping contemporary, western, Protestant religion (for better or worse). These are Karl Barth, Wolfhart Pannenberg and Jürgen Moltmann. Other very influential, systematic theologians of the 20th century include:


Reformed Theology: Herman Bavinck, G.C. Berkouwer, Millard Erickson, Louis Berkhof, Abraham Kuyper


Lutheran Theology: Robert Jenson, George Lindbeck


Weslyean/Methodist Theology: Thomas Oden, William Abraham


Anglo-Theology (various denominations): T.F. Torrance, John Webster, Colin Gunton, Sarah Coakley


Roman Catholic: Hans Urs von Balthasaar, Henri du Lubac, Joseph Ratzinger (Pope Benedict XVI), and Bernard Lonergan.


Systematic Theology in principle tries to answer broad, categorical questions related to all aspects of God, His creation, and His revelation. These aspects are often called theological loci, and the traditional loci of a given theological system are usually as follows (and often found in this order):


1) Prolegomena (see https://www.gotquestions.org/prolegomena.html)

2) Doctrine of Revelation (General, i.e. Natural Theology, and Special Revelation, i.e. Bibliology)

3) Doctrine of God (Trinity, God’s Attributes, also called Theology Proper)

4) Doctrine of Creation (Nature & Anthropology)

5) Doctrine of Sin (Hamartiology)

6) Doctrine of Christ (Christology)

7) Doctrine of Salvation (Soteriology)

8) Doctrine of the Church (Ecclesiology)

9) Doctrine of Angels & Demons (Angelology)

10) Doctrine of Last Things (Eschatology)


Obviously the order of these categories can shift according to the intention and logic of the theologian. Karl Barth, for example, famously began his 12-volume Church Dogmatics with the Doctrine of “The Word of God.” That itself should raise an important question in the reader’s mind, namely, why?


In sum, however, systematic theology is the attempt to give an orderly account about God and His creation using Scripture, Reason (philosophy and science) and human experience to answer the greatest number of fundamental questions about the Christian faith. This is a very different endeavor however from its theological counterpart: Biblical Theology.



Biblical Theology: What Does The Text Actually Say?


B. Biblical Theology


Unlike Systematic Theology, Biblical Theology focuses all its efforts on the study of the Bible, or what systematic theologians call Special Revelation. It looks at the Bible, how it was formed (e.g. the canon of Scripture and the composition of individual books or corpuses); how its parts work together (Old and New testaments); how individual books should be studied, scrutinized, and analyzed for their own sake; and how this all should be done without necessarily regarding how a passage, part of a book, or book of the Bible might fit into a broader theological system or paradigm.


Biblical Theology tries to understand any given part of the Bible, especially particular books, passages of books, or even phrases and individual words in their own immediate context. Thus, biblical theologians focus on very specific things like “Paul’s theology of ministry in the pastoral epistles” or even “the authorship of the pastoral epistles.” Typical biblical theological pursuits are:


1) Lexicography (the study of semantics, grammar, and syntax of the biblical languages)

2) Form criticism & Redaction criticism (controversial areas of Higher Biblical Criticism that are concerned with the origins of biblical books and passages)

3) Textual criticism (i.e. manuscript studies, also called “Lower Criticism”)

4) Critical and expository work of particular books or authors (e.g. commentaries, Pauline studies, Johannine theology, etc.)

5) Comparative historical/literary studies (e.g. Ancient Near Eastern culture, Greco-Roman biography)

6) Hermeneutics (the art and science of interpretation, which is a foundational philosophical undertaking that relates to all other biblical studies)

Biblical Theology is often said to have begun with J.P Gabler’s 1787 inaugural address at the German university of Altdorf (see Andreas Kostenberger https://www.etsjets.org/files/JETS-PDFs/55/55-1/JETS_55-1_1-5_Kostenberger.pdf 2), where biblical theology was delineated from systematic theology, to include its evolution into Old Testament and New Testament studies.


As Biblical Theology grew into its own discipline, it tended to become increasingly separated from the more abstract work of at least some systematic theologians. To the point that today there is often a call in the Evangelical and Roman Catholic worlds to reconnect the two disciplines. The proper balance of Systematic (also known as Dogmatic) and Biblical Theology safeguards against Christian thought that is too atomistic or fragmented (too biblical), or theology that is too broad and not grounded in the very words of the Bible (too systematic).


However, because of advances in linguistic and historical studies, Biblical Theology has become incredibly specialized, and the difficulty of one individual being both an expert exegete, and a top-notch systematician, with all the necessary philosophical training, makes it rare to find a scholar who can do both equally well.


Historically, Biblical Theology has been dominated by German-language scholarship. Names like Bauer (F.C., Bruno, and Walter), Strauss, Wrede, Schweitzer, Wellhausen, Bultmann, von Rad, Noth, and many, many more are synonymous with the biblical interpretive paradigms they helped to create. Paradigms that often go under the title “Higher Biblical Crticism” or HBC. However, many of these great thinkers tended to also have philosophical presuppositions that lead to the slow degradation of the Bible as a divinely inspired revelation of a transcendent God, into a view of the Bible as merely a production of human intellect and culture.


The difference maker for us as theological apologists, especially as we relate to the issue of the reliability and authority of scripture, will often be in discerning what parts of HBC we can accept and put into use for a proper defense of the Gospel; and which ones we must reject based on our necessary metaphysical commitments to a historical, and proclamatory Gospel message.


To know the difference between useful HBC and corrosive HBC, and to accept one side over the other, can result in being either in the scholarly camp of someone like a Bart Ehrman, who has popularized much of the older German HBC in his own works, or someone like Craig Keener, who knows the same scholarship as Ehrman, but rejects the philosophical and theological conclusions of a corrosive HBC that degrades the transcendent nature of the Word of God.


Some excellent contemporary biblical scholars that we should read as people committed to the advancement of the Gospel are:


Old Testament: John Walton, Daniel I. Block, Tremper Longmann III, Gordon Wenham, Bruce Waltke, Derrick Kindner, Edwin Yamauchi, Nahum Sarna (Jewish), Jacob Milgrom (Jewish), Jeffrey Tigay (Jewish), Brevard Childs, Gerhard von Rad (a bit liberal, but a huge name in 20th century OT studies), Umberto Cassuto, John Goldingay, and, more recently, Michael Heiser.


New Testament: N.T. Wright, Richard Hays, Richard Bauckham, Craig Keener, Karl Rahner (Catholic), Michael Kruger, Andreas Köstenberger, Michael Bird, Peter O’Brien, D.A. Carson, Michael Licona, I. Howard Marshall, Darrell Bock, Ben Witherington III, Jocahim Jeremias, E.P. Sander, James Dunn, Moises Silva, Robert Jewett, and Ramsey Michaels.


Because OT and NT studies are so specialized there are simply too many people in the field to give an adequate list. But the above names are all highly regarded 20-21st century Evangelical scholars, unless otherwise indicated in parentheses. For additional Biblical Theological resources these surveys edited by Tremper Longman III, and D.A. Carson are indispensable for anyone looking to go deeper into the Biblical texts: Old Testament Commentary Survey, and New Testament Commentary Survey. These surveys will also save pastors a great amount of time when looking for commentaries to prepare for their sermons.


Conclusion: In conclusion, the goal of any serious Christian will be to think theologically about the Bible, understanding it always as God's Divine Word to man, while also thinking biblically about Theology, making sure that when we teach church doctrines they can be grounded in the text of Scripture. Without thinking theologically, we can get a academic study of the Bible that leaves no room for its divine Author, and without the other we can get a view of god that is very far removed from the God of the Bible, Who was, and Who is, and Who is to come.


I hope this breakdown of theological studies helps in guiding us forward as we look to guide others.


in Christ, Anthony Costello

Director, New Hope Academy

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