This rhetorical question functions as a command. Alternate translation: "Son of man, go and judge. Go and judge the city of blood." (See: [[rc://en/ta/man/jit/figs-rquestion]])
"son of a human being" or "son of humanity." God calls Ezekiel this to emphasize that Ezekiel is only a human being. God is eternal and powerful, but humans are not. See how you translated this in [Ezekiel 2:1](../02/01.md). Alternate translation: "mortal person" or "human"
The word "blood" is a metonym for murder. Alternate translation: "the city where many people murder their neighbors" (See: [[rc://en/ta/man/jit/figs-metonymy]])
The word "her" refers to Jerusalem. Cities were often thought of as a woman. (See: [[rc://en/ta/man/jit/figs-gendernotations]] and [[rc://en/ta/man/jit/figs-personification]])