Bede, on Prov 13:17

“The messenger of the wicked shall fall into mischief: but a faithful ambassador is health.”

“"The messenger of the wicked falls into trouble." He refers to Arius and Sabellius, and other angels, that is, messengers of Satan, who, because they neglected the counsel of the divine Scriptures, fell into the trouble of hellish torments. "But the faithful envoy is health." That is, every Catholic preacher acquires eternal health for himself and his listeners.”

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