Stephanie Martin‘s “Drop, Slow Tears” for SATB (with some divisi near the end) is stunningly beautiful, and happens to be available as a free download from her website. I particularly like the way each four lines of text is handled differently, reflecting the text. There’s a recording of it on Soundcloud:
If you have a smaller choir, or two soloists, you could sing my English setting of Crux Fidelis for SA and organ. This can also be sung in unison, because the organ part effectively doubles the alto line.