Esther 2:22
“And the thing was known to Mordecai, who told it unto Esther the queen; and Esther certified the king thereof in Mordecai’s name.”
KJV
Read in Esther 2Meaning
The chain of communication links Mordecai's loyalty with Esther's access to the king. Naming Mordecai matters because the record of his service will later alter the course of the story.