They've just discovered yet another body, at night, in the garden. I can't remember exactly who said what, but it went something like this;
Aunt Effie (in a voice of doom); "For where a testament is"
Miss Marple (in a voice of moral certitude) "there must also be the death of the testator"
Aunt Effie (looks round sharply, with approval) "For a testament is of force after men are dead"
Miss Marple (thoughtfully) "otherwise it is of no strength at all while the testator liveth"
There was something about the inner strength portrayed by these two elderly, upright characters, intoning words of power like Abbesses that held my attention.
It's from Paul's letter to the Hebrews, Chapter 9, starting at verse 16, where he starts on yet another convoluted explanation:
I find Paul's letters in the King James version utterly impenetrable, and usually end up looking them up in "The Message" or the "Good News" version before I can get to grips with what he was on about. Sometimes that helps, sometimes it doesn't.
I wonder where Agatha Christie got the idea to include that particular bit of the Bible in her book? Do you suppose they had it as one of the lessons in church that morning?