O Morning Star
splendour of light eternal and sun of righteousness:
Come and enlighten those who dwell in darkness
and the shadow of death.
Wisdom. 7, 26:
For she is the brightness of the everlasting light, the unspotted mirror of the power of God, and the image of his goodness.
Hebrews, i, 3:
Who being the brightness of his glory, and the express image of his person, and upholding all things by the word of his power, when he had by himself purged our sins, sat down on the right hand of the Majesty on high
Malachi, iv, 2:
But unto you that fear my name shall the Sun of righteousness arise with healing in his wings; and ye shall go forth, and grow up as calves of the stall.
(For explanation, see here.)