DELETE rows from a specific table

I need to delete some rows from a table.  I need confirmation of this delete statement.

delete *
from MattersQNVTRST q
where matters in (select matters from matters m where m.Matters = q.Matters and m.AreaOfLaw = 'catrst')

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I want to make sure that only the rows in table MattersQnvtrst will be deleted and not the rows in table Matters.