What is Morrison's objective when naming her characters?

I believe Morrison's objective when naming her characters is ti give them depth based on the Bible. For example the Biblical figure Ruth was "a model of loving-kindness" and that "she acts in ways that promote the well-being of others." She is both loyal and obedient. In Song of Solomon Ruth is obedient to Macon's orders because she is better off withstanding the physical and psychological pain than being poor in such a harsh moment for African-Americans. I believe Ruth is complex because I'm not sure if what she does "promotes the well-being of others" or just avoids including her children in her fights.  

Hagar, on the other hand, was a slave. When her mistress and her husband realized they were unable to have children, the husband impregnated her. She realized this and hated her mistress. Because of this the mistress mistreated her and Hagar fled. I have not finished the book but might think Hagar may flee Pilate's house. That's my prediction. We'll see that it is fulfilled.