Jonathan Lumby's interesting book, The Lancashire Witch Craze, includes a chapter on the White Paternoster- which the author claims is a remnant of Catholic culture in early Protestant England.

    White Pater noster, St Peter's brother,
    What hast i' th' t'one hand? White booke leaves.
    What hast i' th' t'other hand? Heaven yate keys.
    Open heaven Yates, and steike shut hells Yates:
    And let every chrysom child creepe to its owne mother.
    White Pater noster, Amen.

I'd like to know if there are other versions extant of this- particularly from America- I think healers and spellmakers were a feature of Appalachian society.

Some relate it to the well- known "Matthew Mark Luke and John, Bless the bed that I lie on".