That He says he “owed him a hundred denarii” is taken from the same number, ten, the number of the Law. For a hundred times a hundred are ten thousand, and ten times ten are a hundred; and those ten thousand talents and these hundred denarii are still keeping to the number of the Law; in both of them you find sins. Both are debtors, both are suitors for remission; so every man is himself a debtor to God, and has his brother his debtor.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Serm., 83, 6