Hope and glory refer to their trust in the military power of these countries. AT: "because they had trusted in the power of the armies of Cush and Egypt" (See: [[rc://en/ta/man/translate/figs-metonymy]])
The author uses this question to emphasize how hopeless their situation was. AT: "now there is no way for us to escape!" (See: [[rc://en/ta/man/translate/figs-rquestion]])