It’s no rare thing for the Israeli prime minister to enrage the Jews of the diaspora. But three years ago, Benjamin Netanyahu delivered a speech that won him near-universal condemnation.

In the aftermath of several deadly attacks in European cities like Paris and Copenhagen, Mr. Netanyahu called on Jews to leave Europe. “Of course, Jews deserve protection in every country. But we say to Jews, to our brothers and sisters: Israel is your home,” he said, echoing comment she had made more subtly the month before at Paris’s Grand Synagogue.

Mr. Netanyahu’s suggestion of “mass immigration” was “unacceptable,” said Rabbi Menachem Margolin, the head of the European Jewish Association. Abraham Foxman, then head of the Anti-Defamation League, suggested such a policy would “grant Hitler a posthumous victory.” Denmark’s chief rabbi, Jair Melchior, said he was “disappointed.” Smadar Bar-Akiva, the executive director of JCC Global, said “the calls for French Jews to pack their bags” and move were “disturbing and self-defeating.”

François Hollande, then president, echoing a chorus of European leaders, pushed back hard, appealing to his country’s Jews: “Your place is here, in your home. France is your country.”

Is it?

This is a question worth seriously asking following the barbaric murder last week of Mireille Knoll.

Ms. Knoll, 85, believed Mr. Hollande. France was her place, her home, her country. And Paris was her city.

She believed this despite the fact that it was also the city where, when she was 9 years old, the police rounded up 13,000 of the city’s Jews, 4,000 of them children, and crammed them into Vélodrome d’Hiver, a cycling stadium, before shipping them to their deaths at Auschwitz. Ms. Knoll narrowly escaped this largest French deportation of Jews during the Holocaust and fled to Portugal with her mother.

After the war, she married a man who had survived Auschwitz. She returned to her native land where she built a home and raised a family. French to her core, she stayed in Paris even as her grandchildren moved to Israel.

She remained in her apartment in the 11th arrondissement when, suffering from Parkinson’s disease, she was stabbed 11 times. Her apartment was then set on fire. Firefighters found the burned body on Friday night.