He read the first paragraph of the Preamble during the episode "The Omega Glory".
And did it quite passionately.
Oh c’mon, The Shat reads the phone book passionately.
We need Cloud Donald to come back and read the sacred words again.
Interesting back story on the woman who came in to make the script changes DC Fontana. Transforming it from a crewman who was about to be executed for dealing drugs on the ship to Dr McCoy going back in time after an accidental overdose saved the story I think.
https://www.imdb.com/name/nm0284894/bio?ref_=nm_ov_bio_sm