The major literary product of the contact of Second Temple Judaism and Hellenistic culture is the Septuagint translation of the Hebrew Bible from Biblical Hebrew and Biblical Aramaic to Koiné Greek, specifically, Jewish Koiné Greek. Mentionable are also the philosophic and ethical treatises of Philo and the historiographical works of the other Hellenistic Jewish authors.
The decline of Hellenistic Judaism started in the 2nd century CE, and its causes are still not fully understood. It may be that it was eventually marginalized by, partially absorbed into or became progressively the Koiné-speaking core of Early Christianity centered on Antioch and its traditions, such as the Melkite Catholic Church, and the Greek Orthodox Church of Antioch.
The conquests of Alexander the Great in the late 4th century BCE spread Greek culture and colonization—a process of cultural change called Hellenization—over non-Greek lands, including the Levant. This gave rise to the Hellenistic age, which sought to create a common or universal culture in the Alexandrian empire based on that of 5th- and 4th-century BCE Athens (see also Age of Pericles), along with a fusion of Near Eastern cultures. The period is characterized by a new wave of Greek colonization which established Greek cities and Kingdoms in Asia and Africa, the most famous being Alexandria in Egypt. New cities were established composed of colonists who came from different parts of the Greek world, and not from a specific metropolis ("mother city") as before.
These Jews living in countries west of the Levant formed the Hellenistic diaspora. The Egyptian diaspora is the most well-known of these. It witnessed close ties, indeed the firm economic integration, of Judea with the Ptolemaic kingdom ruled from Alexandria, and the friendly relations which existed between the royal court and the leaders of the Jewish community. This was a diaspora of choice, not of imposition. Information is less robust regarding diasporas in other territories. It suggests that the situation was by and large the same as it was in Egypt.
Jewish life in both Judea and the diaspora was influenced by the culture and language of Hellenism. The Greeks viewed Jewish culture favorably, while vice versa, Hellenism gained adherents among the Jews. While Hellenism has sometimes been presented (under the influence of 2 Maccabees, itself notably a work in Greek), as a threat of assimilation diametrically opposed to Jewish tradition,