He giveth snow like wool,.... For colour as white as wool; so the Targum and Kimchi: and for the manner of its falling, lightly and gently as a lock of wool; which for its thinness and fineness it also resembles.
Hence the ancients used to call snow eriwdev udwr, "woolly water" ; and Martial gives it the name of "densum veilus aquarum", "a thick fleece of waters": so another poet calls clouds flying fleeces of wool, to which they sometimes seem like; Pliny calls it the from of the celestial waters.