Note 2 at Mt 17:3: The fact that Moses appeared with Elijah proves that there is no soul sleep (see note 14 at Joh 5:28). Elijah never died but was translated (2Ki 2:11), as was Enoch (Heb 11:5). However, Moses did die (De 34:5) and had been dead over 1,500 years. His physical body was in the grave, but his spirit and soul were alive. Moses' soul was visible, recognizable (spiritually discerned - see note 2 at Mt 16:12), and wore clothes.