Used by AV in Luke 1: 78 for ‘dawn’ (NRSV, REB) or ‘the rising Sun’ (NJB). It is a metaphor for the beginning of a new era; and the birth of Jesus came to be associated with the returning sun after the winter solstice; Christmas replaced the Roman pagan festival in honour of the Invincible Sun on 25 December early in the 4th cent.