The North and Midwest drew many African Americans out of the South with promises of industrial jobs and a more racially tolerant environment. That is why hundreds of thousands of African Americans relocated to cities like Chicago, Los Angeles, Detroit, Philadelphia, and New York. Hope this helps :)
The allusion leads to the concept that he is almighty but he is also a loving and good god . And the meaning is from him being the creator of the lamb and the creator of us .
