John Gills Exposition of the Bible Commentary - Esther 8:15
And Mordecai went out from the presence of the king ,.... And walked or rode about in the city to show himself to his friends: in royal apparel of blue and white ; such as the Persian kings wore, and were not allowed to any other, as Xenophon writes F7 Cyropaedia, l. 8. c. 23. : and with a great crown of gold ; a coronet, such as princes and nobles wear; the latter Targum calls it a great golden chain, and such the eastern kings used to give to their favourites; see Daniel... read more
Matthew Henry's Complete Commentary - Esther 8:15-17
It was but a few days ago that we had Mordecai in sackcloth and all the Jews in sorrow; but here is a blessed change, Mordecai in purple and all the Jews in joy. See Ps. 30:5, 11, 12. 1. Mordecai in purple, Est. 8:15. Having obtained an order for the relief of all the Jews, he was easy, he parted with his mourning weeds, and put on the royal apparel, which either belonged to his place or which the king appointed him as a favourite. His robes were rich, blue and white, of fine linen and purple;... read more