With respect to Scripture, for example, lack of clarity about the tasks of biblical interpretation (in which the tug-of-war between "historical" and "theological" interpretation is but one episode) is symptomatic of the absence of shared conceptions of the nature of Scripture and of the tasks which it undertakes in the divine economy. The absence of bibliology, and the widespread assumption that a doctrine of Scripture is exegetically and hermeneutically otiose, cannot be compensated for by further refinement of strategies of interpretation. We need to figure out what the text is in order to figure out what to do with it; and we determine what Scripture is by understanding its role in God's self-communication to creatures. John Webster, ATR/90:4, 734-35.
The short answer is that Scripture is about Jesus; it is from Jesus, given by Jesus, and takes us beyond itself to its reality in Jesus. This will reframe multiple things, like; 1) Ontology of Scripture, 2) Hermeneutics 3) Biblical Theological Grammar, 4) Usage of Scripture, 5) Christian Spirituality/Doxology, 6) etc.