Saul publicly got even more jealous when David crept up on him while he was sleeping in the cave. David could have killed Saul but he only cut off the hem of his cape. Did he really believe his own words: ‘You are a more upright man than I,’ he said to David, ‘for you have repaid me with good while I have repaid you with evil.’

I went to see ‘Three Days in May’ at the theatre about the crucial days in May 1940 when Halifax wanted to start negotiations for peace. But what is remarkable about Churchill is his extraordinary forgiveness to the men of Munich – the Chamberlains and Halifaxs and Hoares who had been ignoring and bad-mouthing him for years.