"Jannes and Jambres" were news to me...as a Catholic.
I have found a few such things like Jannes and Jambres.
St. Peter comments in I Peter 2:6-8 - how “just Lot” was a righteous man, vexed in Sodom and Gommorah - distressed by the depraved conduct of the lawless ... I never would have known that by just reading Genesis, until St. Peter told us that.