God takes a human who can eat and drink to speak certain things to humans, for the salvation of humans who need to be able to identify with the speaker of the saving message. Human ghosts and non-human spirits are useful in some situations but limited in use because they overly scare the human recipients of the message. So for utmost important saving messages and truly vital works of salvation, God uses a living human messenger, whether alive as a mortal or risen as an immortal resurrected human. Even the resurrected human can scare the hearers so in the main a mortal human, not yet having died, is used for the truly vital and saving messengering. The Book of Enoch describes the ultimate messenger from God, the very son of God, to be in fellowship with humans for their salvation and to help and counsel them to keep them ever righteous and at peace with God, the Son of Man, the anointed Elect One. Jesus proclaimed this Son of Man as himself, sent by God.
