God-fearers (Koinē Greek: φοβούμενοι τὸν Θεόν, phoboumenoi ton Theon) or God-worshippers (Koinē Greek: θεοσεβεῖς, Theosebeis) were a numerous class of Gentile sympathizers to Hellenistic Judaism that existed in the Greco-Roman world, which observed certain Jewish religious rites and traditions without becoming full converts to Judaism. The concept has precedents in the proselytes of the Hebrew Bible. More generally, God-fearing has come to mean someone who is honestly religious.