Here the bundles of grain are standing and kneeling as if they were people. These bundle represent Joseph and his brothers. (See: [[rc://en/ta/man/translate/figs-personification]])
Both of these phrases mean basically the same thing. Joseph's brothers are using questions to mock Joseph. They can be written as statements. AT: "You will never be our king, and we will never bow down to you!" (See: [[rc://en/ta/man/translate/figs-parallelism]] and [[rc://en/ta/man/translate/figs-rquestion]])