Anyone know the source of this pre-communion prayer?
Almighty and ever-living God,
I approach the sacrament
of your only-begotten Son,
our Lord Jesus Christ.
I come sick to the doctor of life,
unclean to the fountain of mercy,
blind to the radiance of eternal light,
and poor and needy to the Lord of heaven and earth.
Therefore, I implore the abundance of Your measureless bounty
that You would vouchsafe to heal my infirmity,
wash my uncleanness,
enlighten my blindness,
enrich my poverty and clothe my nakedness,
that I may receive the Bread of Angels,
the King of kings, the Lord of lords
with such reverence and humility,
with such sorrow and devotion,
with such purity and faith,
with such purpose and intention
as may be profitable to my soul's salvation...