Gregory the Great, on Matt 22:1

“And Jesus answering, spoke again in parables to them, saying:”

“(ubi sup.) By the oxen are signified the Fathers of the Old Testament; who by sufferance of the Law gored their enemies with the horn of bodily strength. By fatlings are meant fatted animals, for from ‘alere’, comes ‘altilia,’ as it were ‘alitilia’ or ‘alita.’ By the fatlings are intended the Fathers of the New Testament; who while they receive sweet grace of inward fattening, are raised by the wing of contemplation from earthly desires to things above. He says therefore, My oxen and my fallings are killed; as much as to say, Look to the deaths of the Fathers who have been before you, and desire some amendment of your lives.”

Imported from an open dataset — not yet checked against the printed edition.