en_tn_condensed/2ti/02/17.md

Their talk will spread like cancer

Cancer quickly spreads in a person's body and destroys it. This is a metaphor that means what those people were saying would spread from person to person and harm the faith of those who heard it. Alternate translation: "What they say will spread like an infectious disease" or "Their talk will spread quickly and cause destruction like cancer" (See: rc://en/ta/man/translate/figs-simile)

Hymenaeus and Philetus

These are names of men. (See: rc://en/ta/man/translate/translate-names)