en_tn_lite_do_not_use/2ti/03/09.md

they will not advance very far

Paul uses an expression about physical movement to mean that the false teachers will not have much success among the believers. Alternate translation: "they will not have much success" (See: rc://en/ta/man/translate/figs-metaphor)

obvious to all

"easily seen by all" or "something everyone will see"

of those men

"of Jannes and Jambres"