Midrasch zu Schemuel I 12:22

“She and her daughters-in-law arose, and she returned from the fields of Moav; as she had heard in the fields of Moav that the Lord had remembered His people to give them bread” (Ruth 1:6).
“She and her daughters-in-law arose, and she returned from the fields of Moav; as she had heard in the fields of Moav.” She heard from the peddlers who were circulating in the towns. What did she hear? “That the Lord had remembered His people to give them bread.” One verse says: “For the Lord will not forsake His people, and will not abandon His inheritance” (Psalms 94:14), and one verse says: “For the Lord will not forsake His people for the sake of His great name” (I Samuel 12:22). Rabbi Shmuel bar Naḥmani said: At times, He does so for the sake of His people and His inheritance, and at times He does so for the sake of His great name. Rabbi Aivu said: When Israel merit it, it is for the sake of His people and His inheritance; when Israel does not merit it, it is for the sake of His great name. The Rabbis say: In the Land of Israel, it is for the sake of His people and His inheritance; outside the Land of Israel, it is for the sake of His great name, as it is stated: “For My sake, for My sake, I will do” (Isaiah 48:11).

“Haman said to King Aḥashverosh: There is one people that is scattered and dispersed among the peoples in all the provinces of your kingdom; their laws are different from every people’s, and they do not keep the king’s laws; it is not worthwhile for the king to tolerate them” (Esther 3:8).
“Haman said to King Aḥashverosh: There is [yeshno] one people” – the one of whom it is stated: “The Lord is one” (Deuteronomy 6:4); He is asleep [yashen] for His people. The Holy One blessed be He said to him [Haman]: ‘There is no sleep before Me; that is what is written: “Behold, the guardian of Israel neither slumbers nor sleeps” (Psalms 121:4), and you say that there is sleep before Me? By your life, I will awaken from sleep against that man and eliminate him from the world;’ that is what is written: “Then the Lord awoke as if from sleep…He drove his foes into retreat” (Psalms 78:65–66).
Another matter: “There is one people” – he [Haman] said: ‘Their teeth are big, as they eat and drink and say: Delight in Shabbat, delight in the festivals. They cause a decrease in the assets of the world; once every seven days – Shabbat, once every thirty days – the New Moon, in Nisan – Passover, in Sivan – Shavuot, in Tishrei – Rosh Hashana and the great fast [Yom Kippur], and the festival of Sukkot.’ Aḥashverosh said to him: ‘So they are commanded in their Torah.’ Haman said to him: ‘Had they observed their holidays and our holidays, they would have done well, but they treat your holidays with contempt. “And they do not follow the king’s laws” – as they observe neither calends nor Saturnalia.’ The Holy One blessed be He said to him: ‘Wicked one, you are casting aspersions on their festivals, I will bring you down before them and they will add another festival over your downfall.’ These are the days of Purim; that is what is written: “A fool’s mouth is ruin for him” (Proverbs 18:7).
“It is not worthwhile for the king to tolerate them.” For everything that Haman denounced Israel below, [the angel] Michael would advocate for them above. He said before Him: ‘Master of the universe! Your children are being denounced not because they engaged in idol worship, and not for engaging in licentiousness, and not for bloodshed; rather they are being denounced for observing your laws.’ He said to him: ‘I have not, and I will not forsake them.’ That is what is written: “For the Lord will not forsake His people for the sake of His great name” (I Samuel 12:22). Whether they are guilty or innocent, in any case it is impossible to forsake them, because the world cannot exist without Israel.
“If a man were to give all the wealth of his house…” (Song of Songs 8:7) – that is Haman the wicked, who gave ten thousand silver talents to obliterate Israel, “…he would be scorned” (Ibid.).