Parallel Events in the Grapes of Wrath

this was for a practice ap essay
The Grapes of Wrath, written by John Steinbeck, has many parallel or recurring events throughout the novel, five of the major repeated themes would include the references to the Bible and Jesus Christ, the continuous praising of socialism, the changes that Ma goes through on the trip, and the changing definition of 'family' on the trip to and in California.
Beginning in chapter four, where Tom first meets Jim Casy, there starts a trend of religious references; the first major reference is Jim Casy singing 'Jesus is my Baby'. Jim is a retired preacher, who…