New video series on indefectibility: 'Spotless and Unsullied' on Integrity with Stephen Kokx

In this interview with Stephen Kokx from Integrity, we discussed the indefectibility of the Church.

Jun 18, 2026

In this interview with Stephen Kokx from Integrity, we discussed the indefectibility of the Church.

(WM Round-Up) – On Wednesday 17 June 2026, I appeared on Integrity Magazine’s podcast with Stephen Kokx to begin a new series about the indefectibility of the Church, and my long article ‘Spotless and Unsullied’ – Indefectibility and the Extended Vacancy.

The conversation focused on Chapter I: The Indefectibility of the Church. Spotless and Unsullied is the third part of my response to Fr Thomas Crean OP’s article The Perpetual Visibility of the Catholic Church Under the Pope.

Much of what Fr Crean writes about indefectibility in this article is correct; however, it overlooks or obscures extra elements of this attribute of the Church, and this allows him to use it in an argument against “sedevacantism.”

Topics in this interview included:

The doctrine of indefectibility – elements omitted by Fr Crean, and their implications
Indefectibility, the Church and the Catholic religion
“Immaculate” and “unsullied” – what does this mean for there being “two religions” in one Church?
The Roman Pontiff as the principle of indefectibility
What this means for the Conciliar/Synodal Church.

We will be releasing Chapter I of Spotless and Unsullied for all readers on Friday. But you can read it NOW in the book-length article discussed here:

Spotless and Unsullied – Indefectibility and the Extended Vacancy

(NB: It is not necessary to have read Radically Insufficient or Zero Marks before reading Spotless and Unsullied.)

Other parts in the Zero Marks series:

‘Radically insufficient’ – Reply to Fr Crean on the Church’s visibility, Part I
‘Zero Marks’ – Why the Conciliar/Synodal Church is not the Catholic Church (Reply to Fr Thomas Crean) (All chapters and conclusion)
- Introduction, and Chapter I: Unity
- Chapter II: Holiness
- Chapter III: Catholicity
- Chapter IV: Apostolicity as a Mark
- Chapter V: Apostolicity as a Property
- Conclusion: ‘Hovel in the Valley’
Spotless and Unsullied – Indefectibility and the Extended Vacancy (Part III)

The previous interviews

This interview was a follow up to our previous conversations of the other parts of my response to Fr Crean.

Here is the first interview, on the visibility of the Church (Part I):

Here is the second, on the property of unity (Part II, Ch. 1):

Here is the third, on the property of holiness (Part II, Ch. II):

Here is the fourth, on the property of catholicity (Part II, Ch. III):

Here is the fifth, on the note of apostolicity (Part II, Ch. IV):

Here is the sixth, on the property of apostolicity (Part II, Ch. V):

Here is the seventh, on the conclusion to Zero Marks:

Thank you to Stephen for having me on again. I hope readers of The WM Review enjoy it – and give Kokx News a follow too.

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