p. 641 The Decrees of the Same, from the Codex of Decrees in Sixteen Books, from the Fifth Book, and the Seventh and Ninth Chapters.
That the oblation of the altar should be made each Lords day.
We decree that on each Lords day the oblation of the altar should be made by men and women in bread and wine, in order that by means of these sacrifices they may be released from the burden of their sins.
That an illiterate presbyter may not venture to celebrate mass.
The sacrifice is not to be accepted from the hand of a priest who is not competent to discharge the prayers or actions (actiones) and other observances in the mass according to religious usage.