Jamieson, Fausset & Brown

will eat--literally, "will have pasture." The consuming progress of mortification is the image. They pretend to give rich spiritual pasture to their disciples: the only pasture is that of a spiritual cancer feeding on their vitals. canker--a "cancer" or "gangrene." Hymenaeus--(See on Ti1 1:20). After his excommunication he seems to have been readmitted into the Church and again to have troubled it.