Tchesnokov wrote Salvation is created in 1912, right before the Soviet Union tried to create a secular state, thus forbidding, among many other things, sacred music. There are a number of orchestrations available, usually either for six or eight voices.
Like most transcriptions of choral works, this arrangement works very well for horn ensemble. Doughty only doubles the lines in the big crescendo, and rather opts for sparse orchestration than force everybody in the group to play. This means that some parts rest for close to half the piece, but when everybody plays it is even more effective. Bordering on very easy difficulty, this arrangement works beautifully in almost any setting, and can be played by almost any ensemble.