Why your church needs biblical theology The discipline of biblical theology is just as important to the life of your church as systematic theology. Ecclesiological Bites Joanthan Leeman photo: iStock Biblical theology is the root of doctrine; systematic theology is the fruit. And we need to get both right if we want to know who Jesus is, what the gospel is, and how to guard and guide our churches. subscribe now Join today to gain access to the rest of this article and many others. more info login If you are already a subscriber, log in to continue. log in access code If you have an access code, enter it here: Go free trial Get free access for 14 days: Sign up Click here to find out how we take care of your personal data.