The Maharal notes that Haman’s advisers must have known that Mordechai was a Jew, as Haman, himself mentioned to them (Esther 5:13). After all, it was possible that Mordechai was brought into Persia with King Yechanya (Esther 2:6), but was not actually a Jew. Therefore, the Talmud (Megillah 16a) understands the advisers’ remarks as relating to Mordechai’s tribal lineage. In effect, they were saying that if he were from the tribe of Yehudah, Binyamin, Efrayim, or Menasheh, Haman could not expect to be successful against him. In Bireishis (49:8), Yaakov promised Yehudah that his descendants would conquer their enemies. In Tehillim (80:3), King David prays that H-Shem strengthen Efrayim, Binyamin, and Menasheh. As it happens, Mordechai could trace his paternal lineage to one of these listed tribes and his maternal lineage to another.
The Maharal points out that Yehudah, Efrayim and Binyamin all represent Jewish unity because the Beis HaMikdash, and the Mishkan in Shilo and Nov were all located in their tribal inheritance. As proof, the Maharal quotes from the verse (Bamidbar 16:6) in which Moshe attempts to quell the rebellion of Korach and his group by saying they should all bring fire-pans. The entire group bringing individual fire-pans would represent the very opposite of unity. In fact, the unity of Jews’ uniqueness with H-Shem’s Uniqueness fights off the doubts and confusion that Amalek represents. The Midrash (Esther Rabbah 6:2) considers the description “Yehudi” as being derived from the adjective “yechidi” (“unique”) or the noun echad, (“one”).
According to the Targum, the advisers were not asking if Mordechai was a Jew, but if he were from the holier, saintly Jews. The Vilna Gaon writes that, unlike Haman’s assertion that the events he described were chance, Zeresh and the advisers were saying that it was not. After all, as a member of the Yehudim, Mordechai enjoyed the situation promised by the Talmud (Shabbos 156a, Nedarim 32a) that “ein mazal b’Yisroel” (“there is not mazal for Israel”).
R’ Dovid Feinstein explains that the advisers were focusing on the fact that Haman’s situation could go either way, based on Jews’ behavior.
The Ginzei HaMelech quotes R’ Meir Shapiro, who focused on the word, “zerah” (“seed”). They were saying that if the Jewish youth had no serious connection to Mordechai. They considered the aged Mordechai only powerful if he still held relevant sway on the youth of his people. So when Haman told them that Mordechai was surrounded by thousands of students learning a (temporarily) outmoded law regarding grains and Temple service, the advisers realized Haman has no chance. When Judaism is relevant for the invigorated youth, our enemies stand no chance.
Similarly, says the Ginzei HaMelech, Mordechai has to be mizerah (“from the seed”) of Yehudim – an invigorated member of the youth in vitality – and then Haman should just give up.
According to the Ben Ish Chai, Haman gave a short history lesson saying Mordechai was a descendant of Shaul, who only ruled briefly and not successfully. In response, the advisers said, that may be true, but Mordechai was also a descendant of Yehudah from his mother’s side, so he will win as promised. Homiletically, he reads the word im (if) as eim (mother).
The Megillas Sesarim’s opinion is that these maidservants were Jewish. After all, the previous queen had Jewish maidservants (as we saw before), as well, so there would be little suspicion. This was “fitting for” Esther because she was surrounded by people with whom she could relate and whom she could trust. Rabbi Mendel Weinbach adds that they could even share food with her. Perhaps it was also fitting for her because she could fulfill the mitzvah of “ve’ahavta larey’acha kamocha” (“loving your fellow as yourself”) (Vayikra 19:18) by treating them well.
The Talmud (Megillah 13a) tells us that Esther requested Heigai to give her seven maidservants to help her count the days of the week for her to know which day was Shabbos.1
Rabbi Yehonasan Eibshutz asks why a person would need other people to count the days. He answers that Esther, although she was hiding her Jewish identity, was still practicing Jewish law. Therefore, if all of her maidservants saw her every day, they would see that she was behaving differently on the Sabbath, and that would give away her secret. On the other hand, she could not treat every day as a rest day, but had to stay active to keep from going crazy.
Perhaps another reason why Esther felt she had to maintain an active lifestyle during the week is based on Rav Elie Munk’s interpretation in Call of the Torah on the verse (Shemos 20:9) that tells us “to work” during the six days preceding Shabbos. Rav Munk says that, just as there is a law forbidding work on Shabbos, we have a similar responsibility to work when it is not Shabbos. Therefore, having one maidservant per day, her maids every week from Sunday through Friday saw her active, and must have figured she was some sort of activist queen. Her weekly Shabbos maid saw her lazing about, and probably figured that she was as idle as most normal members of the noble class.
Parenthetically, the Rokeach points out that the last letter of “v’eis” (suf) and the first two letters of “sheva” (shin and beiz) spell the letters of Shabbos. Also, the gematria of “hana’aros hari’uyos” (“fitting maidservants”) is the same as “zu haysa moneh bahen Shabbos” (“this is she counted Shabbos using them”).
Another interpretation of the Talmud is that she used these maidservant to keep track of each of the days of the Shabbos, the week. After all, every day is special. As we say in the morning prayer service before the weekday psalm of Sunday, “today is the first day of the Shabbos,” and on Monday, “today is the second day of the Shabbos,” etc. We make the most out of every day.
1Presumably the Persian calendar did not have seven-day weeks, or Esther would not have needed this kind of help. There are various calendars, like the Celts, the Igbo, and the Akan, that had weeks composed of various amounts of days. Ancient Egypt even had a ten-day week.