'Couches' in the Bible

white linen, white cotton, and blue, fastened with cords of fine linen and purple on rings of silver, and pillars of marble, couches of gold, and of silver, on a pavement of smaragdus, and white marble, and mother-of-pearl, and black marble --

Who are lying down on beds of ivory, And are spread out on their couches, And are eating lambs from the flock, And calves from the midst of the stall,