Alcuin of York — on Rev 8:11 (COMMENTARY ON REVELATION)

“And the name of the star is called Wormwood. Because the Devil withdrew from the sweetness of truth to turn into the bitterness of falsehood, it is right for him to be allotted the name of Wormwood. Then, since a great many people perish from the examples of the wicked, it is fittingly said after that, and many men died of the waters, because they were made bitter. Indeed when fleshly men perish spiritually for having been enticed by the doctrines of wicked people or the examples of their works, it is as if they died of bitter waters.”