I like this overall, and it seems pretty singable. It would be very useful as a short Scripture chorus.
I agree with Lyndon’s point about the rhythm. I also agree on the open fifths. The tenor will have some trouble tuning their final note, and it would also be a more familiar harmonic language to have them sing a mi. Also, starting out, I think it could be more intuitive to have them begin on a mi. I don’t sense that the benefits of the open fifths are outweighing the disadvantages in either place.
Otherwise, quite enjoyable!