Here is some orchestral-style accompaniment for a 4-part choir piece called “When the Kingdom Comes” (music by Susan Naylor Callaway; words by John A. Ray; published by Lorenz Publishing Company).
This is a well-known hymn. I decided to try to write some nice chords and harmonies for our choir, plus a nice-sounding piano accompaniment. It's still a pretty simple arrangement. Our choir has only a few men, so I've arranged it for just one men's part.