Mordecai became great among the Jews and was accepted by many of his brothers (Esther 10:3). The text also states he was “second unto king Ahasuerus,” highlighting his high rank in the empire (Esther 10:3).
Esther closes by describing Mordecai’s public standing and the purpose he pursued with it. He is presented as the king’s top official, highly respected within the Jewish community, and widely welcomed by his fellow Jews. This sentence functions as the book’s final character summary, following the brief notice of the king’s broader power and the record of Mordecai’s greatness in royal archives (Esther 10:1–2).
Esther ends by summarizing Mordecai’s lasting significance, not by adding new plot events. The text explicitly presents him as both a high-ranking imperial official (“next to king Ahasuerus”) and as someone who remained firmly identified with his people (“Mordecai the Jew”).
A careful answer keeps the immediate passage, the book's argument, and the whole-Bible storyline together, so the question is answered in context instead of as a detached idea.
Start with Esther 10:3, then read the surrounding section so the answer stays connected to the passage's flow.
3For Mordecai the Jew was next to king Ahasuerus, and great among the Jews, and accepted of the multitude of his brothers, seeking the good of his people, and speaking peace to all his seed.