It has given trouble to divers persons, that in the Church some offer unleavened and others leavened bread. The Roman Church offers unleavened, because the Lord took flesh without any pollution [marg. note: commixtione]; other [marg. note: Graecaesc] Churches offer leavened bread, because the Word of the Father took flesh upon Him, and is Very God, and Very Man; and so the leaven is mingled with the flour. But whether we receive leavened or unleavened, we are made one body of the Lord our Saviour.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: non occ.