Hasideans
The Hasideans were a Jewish group during the Maccabean Revolt that took place from around 167-142 BCE. The Hasideans are mentioned three times in the books of the Maccabees, the main contemporary sources from the period. According to the book 1 Maccabees, during the early phases of the anti-Jewish decrees and persecution proclaimed by King Antiochus IV Epiphanes, some Hasideans joined up with Mattathias the Hasmonean as he marshalled forces and allies for his rebellion. Later on, during the term of High Priest Alcimus, some Hasideans apparently trusted Alcimus's promises at first and attempted to negotiate a settlement with the government, but were betrayed and executed. In the book 2 Maccabees, Judas Maccabeus is described as the leader of the Hasideans and of them all as troublemakers disrupting the peace, but by Alcimus, a source the book considers untrustworthy and corrupt.
The Hasideans have been the object of much scholarly speculation: were they a specific group with a coherent ideology, or merely a generic term for "the faithful"? If they were a group, what was their religious and political stance? What happened to them after the Maccabean Revolt concluded? Were they predecessors of the Pharisees, the Essenes, both, or neither? Scholars have come to different conclusions: from seeing them as religious "moderates" whose main goal was the preservation of traditionalist Judaism against Hellenism to seeing them as simply as a very religious group who were betrayed.
The term ''hasid''
The Hebrew word hasid means "pious". It was thus a natural term of self-identification for various individuals and groups. The name "Hasidim" occurs at several points in the Book of Psalms in the sense of "the pious". Psalm 79 describes many hasidim being slaughtered near Jerusalem by Israel's enemies, while Psalm 149 depicts hasidim as warriors who "execute vengeance on the nations and punishment on the peoples". The date of composition of these psalms is uncertain; some scholars date them to the Maccabean period and consider the verses in question to refer to the hasidim at this time, while others disagree and assign an earlier date to these psalms.Later rabbinic Judaism in Talmudic sources use the term hasid as well, although generally to individual pious people rather than a particular group or sect. These sources generally long post-date the Maccabean period, though.
While the term comes from Hebrew, the books of the Maccabees only survived in Greek form, hence "Asidaioi" and variants. It appears to have been used as a loanword; the author of 2 Maccabees says the group was "called" Asidaioi, which is generally the terminology for introducing a non-Greek word to merely pronounce.
Primary sources
1 Maccabees relates that at the start of the conflict around 167-166 BCE, some of those "who had rejected the king's command" forbidding traditional Jewish practices such as circumcision and Jewish dietary laws had escaped into the wilderness. The empire's soldiers had attacked them on the Sabbath, they declined to defend themselves, and were killed. Mattathias the Hasmonean uses the incident to rally support for his brand of resistance which allowed for warfare on the Sabbath. The author of 1 Maccabees, a source very much favorable to the Hasmonean family, then says this caused a group of Hasideans to join under Mattathias's revolt and provide needing backing.A second passage in chapter 7 happens after the appointment of Alcimus as the new High Priest of Israel by the new Seleucid King Demetrius I Soter. This was in a later phase of the struggle, around 161 BCE, when the Seleucids had repealed the most onerous of the anti-Jewish decrees and were working to restore calm to the restive province. Alcimus appears to have moderated the worst of his predecessor's actions and reached out to restore loyalty to the government. However, the Maccabee rebels continued to press for full autonomy, and despised Alcimus as a collaborator and traitor. The author of 1 Maccabees portrays Alcimus as grudgingly effective at luring some to his side, but considered his arguments to trust the Seleucid government deception and lies, and uses the incident above to prove their point. The author makes clear his stance that these Hasideans were being fooled; working with the government will only get you betrayed and killed, and the only justifiable stand is to work with the Hasmonean family for full autonomy and independence. This passage also implicitly associates the Hasideans with the scribes, saying that both were negotiating terms with Alcimus.
The book 2 Maccabees appears to use the term differently than how 1 Maccabees does. In it, Alcimus, in explaining the situation in Judea to King Demetrius, calls Judas Maccabeus the leader of the Asidaioi. This contrasts with 1 Maccabees 7, where they are clearly not followers of Judas, but rather are naively welcoming to Alcimus. While it is possible that these books are describing a split among the Hasideans with some following Judas and others not, the favored explanation by scholars is that in 2 Maccabees, the term simply means "the faithful" in the sense of traditionalist Jews in general, and not a specific group. The reference also should be taken carefully, as the author has made it part of Alcimus's argument, but Alcimus is also a liar according to the book. At the least, the author certainly intends the reader to think that Alcimus is lying about Judas being the source of the troubles in Judea, so him being a wicked informer and smearing the "real" Hasideans by claiming the troublemaker Judas is their leader is also a possibility.
Nature and character
Loosely speaking, there are three main branches to take with these references to the Hasideans as to who they were.Unorganized faithful
The simplest option is to deny that the Hasideans were a coherent group at all. In this case, 1 Maccabees was merely expressing that some of the "faithful" of Israel joined with Mattathias, and other "faithful" were content to negotiate with Alcimus. They would not be greatly distinguished from any other traditionalist Jews.Daniel R. Schwartz notes that 1 Maccabees 2:42 has significant textual variants between the oldest manuscripts. The Codex Alexandrinus, the Vulgate Latin translation, and Syriac translations read "Hasideans" ; however, the Codex Sinaiticus, the Venetus, and Old Latin translations only read "Judeans" instead. Schwartz prefers the "Judeans" reading which would eliminate mention of the Hasideans there entirely, and suggests that a translator from Hebrew to Greek may have simply erred when choosing to transliterate the Hebrew hasidim as if it were a proper name, or some other scribal meddling.