1 Thessalonians 2:15

Who killed the Lord Jesus. Not all the Jews, but a certain element was responsible for killing Jesus (Matthew 27:25). The false teachers here may have said that since the Jews, who were Jesus' own people, killed him and persecuted the apostles, this was proof that the Good News is false. But Paul points out the fact that they even killed their own prophets whom they admitted came from God! (Acts 7:52-53; Matthew 23:31) How hostile they are to all men. The Jewish leaders were especially noted for this, and even Josephus, the Jewish historian, mentions it. The Law of Moses commanded kindness to foreigners. But after the return from Babylon (where they had been held captive) they developed an "isolationism" which caused them to be openly hostile to everyone but their own group.