"Orange Are Not The only Fruit"

Winterson's novel at first look is easier to read comparatively to "Carpenter's Gothic". I notice that the author has used words like Genesis which is I believe the old testament of the christian Bible and the first book of the Hebrew Bible to talk about Jeanette birth as if she was a special kid. A story that make us think to the one of The Christ. Winterson then use the word exodus the second book of the Torah to talk about the second half of  her childhood by the time she was seven. ( I think she mentioned 7 for a reason but I don't know why yet) Jeanette is leaving in a  family very strict upon religion, especially her mother. She learned to read in the Bible. Jeanette didn't seem to have a lot of distraction in her life. She was not used to have a voice in anything, I think it is the reason why she didn't tell that she had difficulties hearing. The fruit  Orange is present throughout the novel. I think I need to read some more to know exactly why an Orange and not an Apple for instance.