Core Idea
Before Christianity and Islam, criticism of Jews often focused on customs that marked them as different: Sabbath observance, food laws, circumcision, and refusal to worship civic gods.
Main Pattern
The recurring pattern was suspicion of separation. Jewish communal practices could be described as loyalty to a strange law rather than participation in the wider civic order.
Historical Snapshot
Greek and Roman authors sometimes admired Jewish antiquity while also mocking or mistrusting Jewish customs. These ideas were scattered, not yet a single system.
Modern Echo
Later forms reused the older idea that Jewish continuity itself is suspicious, turning ordinary communal difference into evidence of secret hostility.