"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. Alternate translation: "mortal person" or "human"
The abstract noun "lamentation" can be translated using the verb "lament." Alternate translation: "begin to lament" (See: [[rc://en/ta/man/jit/figs-abstractnouns]])