To address the issue of a truth greatly reduced requires us to be poets that speak against a prose world. The terms of that phrase are readily misunderstood. By prose I refer to a world that is organized in settled formulae, so that even pastoral prayers and love letters sound like memos. By poetry, I do not mean rhyme, rhythm, or meter, but language that moves like Bob Gibson’s fast ball, that jumps at the right moment, that breaks open old worlds with surprise, abrasion, and pace.

Poetic speech is the only proclamation, I submit, that is worthy of the name preaching. Such preaching is not moral instruction or problem solving or doctrinal clarification. It is not good advice, nor is it romantic caressing, nor is it a soothing good humor.

It is, rather, the ready, steady, surprising proposal that the real world in which God invites us to live is not the one made available by the rulers of this age. The preacher has an awesome opportunity to offer an evangelical world: an existence shaped by the news of the gospel. This offer requires special care for words, because the baptized community awaits speech in order to be a faithful people. What a way to think about a poetic occasion that moves powerfully to expose the prose reductions around us as false!

from Poetry in a Prose-Flattened World, by Walter Brueggemann
https://www.preaching.com/articles/poetry-in-a-prose-flattened-world/