Brooklyn Borough President Eric Adams said Sunday that he plans to carry his gun to church — and encouraged off-duty cops to follow suit — in the wake of Saturday’s horrific synagogue shooting in Pittsburgh.

“I used to carry my gun all the time when I went to church,” the retired cop-turned-pol said at a press conference Sunday, according to video posted to social media. “If we have police officers standing in front of churches, then we can’t say it’s wrong for a police officer who’s off duty to be inside churches with a gun.

“If they’re leaving those firearms home, I now say to them: Stop leaving your firearm home. Do as I do. Bring your firearm to church.”

Police say Robert Bowers opened fire inside the Tree of Life Synagogue on Saturday morning, killing 11 congregants and injuring two other temple-goers, two cops and two SWAT team members.

President Trump on Saturday claimed that armed guards “might have been able to stop [shooter Robert Bowers] immediately.”

But Pittsburgh Mayor Bill Peduto cautioned against the proposal Sunday.

“I think the approach we need to be looking at is how we take the guns – which is the common denominator in every mass shooting in America – out of the hands of those that are looking to express hatred through murder,” Peduto said during a news conference.

Former NYPD Commissioner Ray Kelly also questioned the wisdom of armed guards at houses of worship during an appearance on the “Cats Roundtable” radio program Sunday.

“I don’t know about armed guards,” Kelly said. “That armed guard could be the first person killed. You had four police officers wounded yesterday. There is no panacea.”