Fast — And pray; so as you use to do, leave off your common dinners by day, and suppers at night, and eat and drink no more than mere necessity requires; that so you may give yourselves to constant and fervent prayers. Maidens — Which she had chosen to attend upon her person, and were doubtless either of the Jewish nation, or Proselytes. Which is not, &c. — Which may belong, either to the thing only, that as they did fast, so she would. Or, rather, to the time of three days and three nights; for so she might do, though she went to the king on the third day. For the fast began at evening, and so she might continue her fast three whole nights, and two whole days, and the greatest part of the third; a part of a day being reputed a day in the account of scripture, and other authors: of which see on Matthew 12:40. Yea, she might fast all that day too: for it is probable she went not to the king 'till he had dined; when she supposed she might find him in the most mild and pleasant humour, and then returned to her apartment, where she fasted 'till the evening.
Related Commentaries of Esther 4:16
Esther 4:16
16 Go, gather together all the Jews that are presente in Shushan, and fast ye for me, and neither eat nor drink three days, night or day: I also and my maidens will fast likewise; and so will I go in unto the king, which is not according to the law: and if I perish, I perish.