And all the acts of his power and of his might, and the declaration of the greatness of Mordecai, whereunto the king advanced him, are they not written in the book of the chronicles of the kings of Media and Persia?

Wesley's Notes

10:2 Chronicles, and c. - These are lost long since, and buried in oblivion, while the sacred writings remain throughout the world. When the kingdoms of men, monarchs and their monarchies are destroyed, and their memorial is perished with them, the kingdom of God among men, and the records of that kingdom, shall remain as the days of heaven.

King James Translators' Notes

advanced...: Heb. made him great

Jamieson-Fausset-Brown Bible Commentary

2. the declaration of the greatness of Mordecai-The experience of this pious and excellent Jew verified the statement, "he that humbleth himself shall be exalted" [Mt 23:12; Lu 14:11; 18:14]. From sitting contentedly at the king's gate, he was raised to the dignity of highest subject, the powerful ruler of the kingdom. Acting uniformly on the great principles of truth and righteousness, his greatness rested on a firm foundation. His faith was openly avowed, and his influence as a professor of the true religion was of the greatest usefulness for promoting the welfare of the Jewish people, as well as for advancing the glory of God.

Matthew Henry's Concise Commentary

10:1-3 Greatness of Ahasuerus-Mordecai's advancement. - Many instances of the grandeur of Ahasuerus might have been given: these were written in the Persian chronicles, which are long since lost, while the sacred writings will live till time shall be no more. The concerns of the despised worshippers of the Lord are deemed more important by the Holy Spirit, than the exploits of the most illustrious monarch on earth. Mordecai was truly great, and his greatness gave him opportunities of doing the more good. He did not disown his people the Jews, and no doubt kept to the true religion. He did not seek his own wealth, but the welfare of his people. Few have it in their power to do so much good as Mordecai; but all have it in their power to do hurt, and who has it not in his power to do some good? We are not required to do what is not in our power, or is unsuited to our station; but all are bound to live under the influence of the tempers displayed in the saints, whose examples are recorded in the Bible. If we live by the faith of Christ, we shall be active according to the ability and opportunities he gives us, in promoting his glory and the best interests of men. If our faith be genuine, it will work by love. Wait in faith and prayer, and the event will be safe and glorious; our salvation is sure, through our Lord Jesus Christ.