In the letters to the early Christian churches of Smyrna and Philadelphia in Revelation 2:9 and 3:9, Jesus makes reference to a synagogue of Satan (Greek: συναγωγή τοῦ Σατανᾶ, synagoge tou satana), in each case referring to a group persecuting the church "who say they are Jews and are not".
The verse has often been used to justify hatred against all Jews or particular subsets of modern Jews,[1][2] which academic scholars generally view as ignorant of the biblical context based on the fact that the suspected author of Revelation was likely Jewish.[3]: 89