Does diachronic faith undermine perseverance and regeneration?

A reader asks whether adopting a Federal Vision-like perspective on faith and justification can stop there. Must it not logically lead us to deny the perseverance of the saints, and in turn the Reformed understanding of regeneration? I explain why I think this is broadly mistaken.

Another deconversion story

Warning: while grown-ups will find this an unintentionally comical demonstration of how deeply apostates think before abandoning their faith, Christian children below the age of 8 may want to steer clear.