Word of God

Short definition from Wiktionary

Proper noun

1. 1
   A sacred teaching, writing or book viewed as being the work of God.
2. 2
   The Logos, or God the Son.
3. 3
   The creator(s) of a media franchise and/or their extradiegetic revelations about plot, characters, etc.

Noun

1. 1
   A message from God, or a manifestation of his will
2. 2
   the Scriptures, especially when interpreted as the work of God rather than man