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Finding the Main Idea
Expository Preaching · Doctrinal study

Finding the Main Idea

Unifying the Sermon Around the Text's Central Truth

Overview

One Text, One Central Truth

By the end of a good week of study, a preacher's notebook is full: observations, word studies, background, cross-references, questions answered and unanswered. The danger now is not having too little to say but trying to say all of it. A sermon that says everything leaves the hearer with nothing he can carry home. The next step is to find the one idea that holds the passage together.

Jerry Vines and Jim Shaddix call this step unifying the theme. In their plan every passage has a central idea, which they call the central idea of the text, and a good expository sermon grows out of it. The idea belongs to the text before it belongs to the preacher. His job is to find it, not to invent it.

DefinitionCentral Idea of the Text

The one main truth a passage teaches, stated in a single sentence in the passage's own terms, which every part of the passage supports, explains, or applies.

The Writer Tells Us His Sum

“Now of the things which we have spoken this is the sum: We have such an high priest, who is set on the right hand of the throne of the Majesty in the heavens;”HEBREWS 8:1 · KJV

Partway through Hebrews the writer stops and says, Now of the things which we have spoken this is the sum. The word translated sum means the chief point, the main thing. Seven chapters of argument come down to one sentence: We have such an high priest, seated at the right hand of the Majesty in the heavens. The inspired writer knew the difference between his many supporting thoughts and his main point, and he told his readers which was which. The preacher's task is to do the same for every passage he preaches: find the sum, and make it plain.

The Key Question

Can you say in one sentence what this passage is talking about and what it says about it?

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Analyzing the Text

Before a preacher decides what to say, he chooses a complete unit of Scripture and studies it closely: what it says, where it sits, how its sentences are built, what its key words mean, and the world it was written in, turning to the commentaries last.

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