Bede, on Jude 1:12

“These are spots in their banquets, feasting together without fear, feeding themselves, clouds without water, which are carried about by winds, trees of the autumn, unfruitful, twice dead, plucked up by the roots,”

“Clouds without water, etc. The saints are preachers, who, having their conversation in the heavens, shine with miracles, and rain with words. Of whom it is said to God: And your truth reaches to the clouds. But heretics are clouds without water, who have placed their mouth in the heavens by their proud words; but they do not water the hearts of their listeners with the water of wisdom, who are carried away by the winds, as if by the suggestion of invisible spirits, and are caught up in various errors of vices.”

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