Quoting myself,
All throughout the book Christianity is clearly VERY evident. I do not know how anyone can possibly miss the references made in that link. And there are so many more. While I do not quite agree with the conclusions reached in that link it does prove the point that there are innumerable biblical or Christian references in GWTW.
One need only read the very opening of the book to where the book's title comes from: '' There was a land of Cavaliers ... look for it in books, for it is no more that a dream remembered, a Civilization gone with the wind.''
All thru the book Scarlett is looking for satisfaction in people, materiality, having multiple spouses, and in amassing wealth. "Money was the obsession dominating her mind." [p 668] "I want money more than anything else in the world". [p 679] All this just like Solomon in the Old Testament. In the end both characters determined that they were merely chasing after wind as "All is vanity and grasping for the wind."
Ecclesiastes 1:14; 2:11; 2:17; 2:26; 4:4; 4:6; 4:16; 6:9