Today's Reading in the Daily Office included the following quote from the Apostle Paul:

Therefore it says, “Awake, O sleeper, and arise from the dead, and Christ will shine on you.”  Eph. 5:14

As I read this mornings readings, I wondered where was his quote coming from?  It's not an Old Testament Scripture.  It's clearly scriptural, but where is "it" from?   He seems to presume the Church in Ephesus knew the source.  Could it be from an Early Church Worship Liturgy?  What a great way to address someone coming out the Baptismal Waters.  I may like to connect it to a closely following verse, giving the source perhaps from an song of the Early Church, but I'm not sure.  Could it be one of those Hymns or Spiritual Songs, Paul writes about three verses later?

Check it out:

And do not get drunk with wine, for that is debauchery, but be filled with the Spirit, addressing one another in psalms and hymns and spiritual songs, singing and making melody to the Lord with your heart, giving thanks always and for everything to God the Father in the name of our Lord Jesus Christ …    Eph 5:19-20

Anyway let's WAKE UP - ARISE - BE SPIRIT FILLED - SING - MAKE MELODY - GIVE THANKS - LET CHRIST SHINE ON US