MIST (אֵד, H116, ἀχλύς, ὁμίχλη). Mist is caused by water vapor filling the air until it is only partially transparent. Mist or fog is not common in Pal. and Syria at sea level, but occurs almost daily in the mountain valleys, coming up at night and disappearing with the morning sun (Wisd Sol 2:4). In Job 36:27 KJV, ASV, JPS, all tr. “vapor,” but RSV has “mist” for the same Heb. word. “Mist” might describe the warm, humid atmosphere of the early antediluvian period (Gen 2:6). But LXX tr. πηγή, G4380, “spring,” and Knox trs. “spring-water,” RSVmg. “flood”; underground water sources may be meant; the Heb. meaning is obscure. In Acts 13:11, Gr. achlys, describes incipient blindness, and has been so used since Homer. False prophets are compared to mists (homíchlai) because of the confusion they bring to unwary believers (2 Pet 2:17).