Jonah 3:8

Let man and beast be covered with sackcloth -The gorgeous caparisons of horses, mules and camels was part of Eastern magnificence. Who knows not how man’s pride is fed by the sleekness of his stud, their “well-appointed” trappings? Man, in his luxury and pride, would have everything reflect his glory, and minister to pomp. Self-humiliation would have everything reflect its lowliness. Sorrow would have everything answer to its sorrow. People think it strange that the horses at Nineveh were covered with sackcloth, and forget how, at the funerals of the rich, black horses are chosen and are clothed with black velvet.