This document discusses how the textual component of discourse aids in creating the flow of information through a text. Specifically, it examines thematization and topic at the clause, clause complex, and paragraph levels to understand how meaning unfolds linearly in a discourse. As an example, it analyzes the thematic structure of 1 John 2:28-3:17 to demonstrate how this approach can be used in biblical exegesis. The key points are that discourse has a linear structure which constraints how meaning is conveyed, and that examining thematic elements at different ranks allows one to determine the topic of a discourse.