A New York City rabbi has renewed his call to arm shul-goers after an anti-Semitic gunman killed 11 people at a Pittsburgh synagogue Saturday.

“You must have it,” Rabbi Gary Moskowitz said of armed congregants. “A guy comes in with a gun, and what can they do? Throw chairs at them? We’re sitting ducks here.”

Moskowitz, a former cop, founded a group called the International Security Coalition of Clergy, which previously sought to arm Jews in synagogues out of fear jihadists would attack them.

Moskowitz is now once again calling on Jews to train and apply for permits to carry guns in their synagogues following the Pittsburgh attack — and he’s not alone.

“Several people in every synagogue should have the right to carry a premise permit,” Moskowitz said.

“I’m in favor,” added Rabbi Joseph Potasnik, executive vice president of the New York Board of Rabbis.

“I would like to see some protection,” he said. “It could serve as a deterrent.”

With the premise permit, Moskowitz says members of a synagogue would be allowed to carry a weapon while at services and travel to and from the building with it.

The rabbi believes that arming the congregants is ultimately a better solution than using private security or police protection because a member of a synagogue would be able to spot more things out of the ordinary. A cop or guard would not be as familiar with the temple, Moskowitz said.

He and members of his security group held a meeting at their Kew Gardens synagogue on Sunday night to discuss how to get their message out. It’s unclear, though, what was decided.

Rabbi Dr. Tzemah Yoreh, leader of The City Congregation, told The Post that while he was “conflicted” about allowing guns in the synagogue, he could see why others would want them.

“On the one hand, we want to celebrate openness and freedom of worship and have people come into sanctuaries and not be impeded,” Yoreh said. “On the other hand, people in my community are really scared.”