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.

What is being born of water in John 3:5?

Is it baptism, amniotic fluid, or is John tracing a trajectory of Old Testament allusion and physical metaphor?

Can unbelievers understand the Bible?

A brief response to an important question, in which I answer yes and no.

Why doesn’t God just do whatever it takes to make people believe in him?

In which I point out four faulty presuppositions behind a common atheistic question.