Evil under the Sun

Agatha Christie has a Poirot novel with the title Evil under the Sun which really has an 'Ecclesiastes' ring to it, since 'under the sun' is a key phrase in the biblical book. The book has no discernible relationship to Ecclesiastes apart from the title, which Poirot pronounces in the context of a conversation where the character Emily Brewster suggests that there wouldn't be a murder in such an island paradise. Poirot replies, "It is peaceful. The sun shines. The sea is blue. But you forget, Miss Brewster, there is evil everywhere under the sun" (p. 11).
The Reverend Stephen Lane soon pipes up, "I was interested, M. Poirot, in something you said just now. You said that there was evil done everywhere under the sun. It was almost a quotation from Ecclesiastes." "Yea, also the heart of the sons of men is full of evil, and madness is in their heart while they live" (p. 12).
This is a quotation of Ecclesiastes 9:3 from the King James Version. The choice is surprising since the quote does not mention the 'sun'. The unquoted first part of the verse, however, does say, "This is an evil among all things that are done under the sun..." The verse is actually lamenting the finality of death.
Other verses the author could have quoted:
Eccl 4:1, "the oppressions that are done under the sun"
Eccl 4:3, "the evil work that is done under the sun"
Eccl 5:13 [heb 12], "evil which I have seen under the sun"
Eccl 10:5, "There is an evil which I have seen under the sun"

Agatha Christie, Evil under the Sun. New York: Dodd, Mead & Co., 1940.
Amazon edition, click here.