‘For this reason he says, “Awake you who sleep, and arise from the dead, and Christ will shine on you”.'
We do not know the source of this saying. It may well be a conflation of Isaiah 60:1 combined with Isaiah 52:1, with Daniel 12:2-3 in the background. ‘Awake, awake, put on your strength --- arise, shine for your light is come and the glory of the Lord is risen upon you -- His glory shall be seen on you'. We may thus see it as a Pauline, or early church, combination of these Scriptures. However, its import is clear. Those outside of Christ in darkness must awake out of their deadness and let Christ shine on them. He is there to shine on them and reveal His glory to them. So, as the light of Christian lives convicts them of their sin and need, this is to be their response And Christ Himself will shine on them once their hearts are open to Him.