Sermonize

And doe not our Prelates thus, when […] they disgrace and traduce Preaching, calling it in scorne, Sermonizing?

Source: wiktionary

Don’t be alarmed, I am not going to sermonize—but what is almost as dull, to narrate.

Source: wiktionary

“[…] I am perhaps talking rather superfluously; but a man likes to assume superiority over himself, by holding up his bad example and sermonizing on it.”

Source: wiktionary

[…] she would distrust him if she saw him again before he had achieved all his promises; had journeyed clear out to the Mississippi […] and had become fluent in sermonizing in the Dakota language. No, he must see her next in his glory as a practicing missionary.

Source: wiktionary