Esther 1:13 - Joseph Benson’s Commentary on the Old and New Testaments

Which knew the times The histories of former times, what princes had done in such cases as this was, and were well skilled in the laws and customs of their country, and were therefore able to give the king counsel in all extraordinary and perplexed cases. Inasmuch, however, as the Persian kings did nothing without their magi, or wise men, who were great pretenders to astrology, some have supposed that men of this sort were now called in, to know whether it was a proper time to do what the king had in his mind.