I am struggling to make sense of the Prime Minister’s answer to my question: whether he is a practising Roman Catholic - which I asked in good faith and with good reason because he was recently married in Westminster Cathedral.
His answer was: 'I don’t discuss these deep issues. Certainly not with you.'
He is aware that - for better or worse (worse for a long time) - this has been a pertinent question for chief and prime ministers since Henry Vlll.
More broadly, the professed faith (or none) of a leader matters to many voters. But it was the 'certainly not with you' that took me aback.
There is nothing in my 35 years as a journalist to suggest that I would trivialise or denigrate religion, or any issue of conscience.
If someone had made that remark in that context when I started in journalism 35 years ago I might have replied 'is that because I am Jewish?' or 'is it because I went to a comprehensive and not Eton?'
But I assume none of that was on Boris Johnson's mind.
So if any of you - or even perhaps he - could explain, I would be grateful.
This article first appeared on ITV's website.