Here "relief" and "rescue" are spoken of as if they are living things that can rise up. Alternate translation: "someone else will rise up from another place and rescue the Jews" (See: [[rc://en/ta/man/translate/figs-personification]])
The purpose of this question is to have Esther think deeply about her role in this situation. Alternate translation: "Who knows, perhaps it was for just for a time like this that you were made queen." (See: [[rc://en/ta/man/translate/figs-rquestion]])