NEW YORK — With the sun just rising over Yorkville, Mayor Eric Adams left Gracie Mansion Sunday morning, hopped on a Citi Bike and went to work.

The newly minted mayor spent his first night in Gracie Mansion Saturday. Aides said he has partially moved into the mayoral residence where he will be living for the next four years.

First on the list was a few rounds on national television, making appearances on two Sunday news programs. Shortly after that, Adams hopped on the subway up to Harlem for a visit to the Cathedral of St. John the Divine.

The historic site is offering COVID-19 tests and also operates a food pantry — a reminder of the state of the city, which is still struggling with a pandemic that has left many New Yorkers without jobs and with a lingering uncertainty.

Adams shook hands and posed for photos with those waiting on line.

“We’re gonna get through this together,” he said.

The cathedral is also the final resting place of former Mayor David Dinkins. Adams, the city’s second Black mayor, stopped to lay candles and pray.

But it was at the Our Children’s Foundation, a community organization in Morningside Heights, where Adams sent a message to New Yorkers, promising to to deliver on his signature campaign promise.

Adams spent over an hour meeting with the mothers and families of people lost to gun violence. He was joined by NYPD Commissioner Keechant Sewell and department brass to discuss how the department should respond to the increase in gun violence.

“When I speak to these mothers, and say I want to put a plain clothes anti-gun unit in place, they’re saying, 'What took you so long?'” Adams said.

The anti-crime unit, disbanded under former Mayor Bill de Blasio, is controversial and had deadly high-profile incidents, but with an increase in gun violence, Adams said he is bringing it back, promising it will be reformed and that officers will lean on technology, not force, in order to prevent violence.

“Policing must be predictable and unpredictable. The plain clothes unit is the unpredictable aspect of it,” Adams said. “We’re going to roll it out and do it right.”

The mayor also had a few choice words for his would-be critics.

“It’s wrong to keep saying that this is what all New Yorkers are saying just because a numerical minority or the best Twitter handle, the best Instagram, the best Facebook [says it]," he said. "That is not what people need."

It wasn’t only public safety, Adams is also gearing up for the reopening of schools after the winter break this week. With omicron cases on the rise, he’s vowed to keep schools open, saying “schools are the safest place for children.”