Or because out of the hundred measures of oil, he caused fifty to be written down by the debtors, and of the hundred measures of wheat, fourscore, the meaning thereof is this, that those things which every Jew performs toward the Priests and Levites should be the more abundant in the Church of Christ, that whereas they give a tenth, Christians should give a half, as Zaccheus gave of his goods, (Luke 19:8.) or at least by giving two tenths, that is, a fifth, exceed the payments of the Jews.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: de Qu. Ev. l. ii. qu. 34.