Gov. Andrew Cuomo warned on Sunday that Con Edison “does not have a franchise granted by God” and “can be replaced” as the power company admitted it still couldn’t explain why a blackout struck a large swath of Midtown Manhattan.

In a series of TV and radio interviews, Cuomo blasted Con Ed’s performance following Saturday’s outage and threatened to revoke its state-issued operating license.

“Con Ed does not have a franchise granted by God — you can look through the Bible,” the governor told WCBS radio.

“We’re getting to the point where Con Ed is going to have to deliver or we’re going to have to find a different delivery mechanism.

“They can be replaced,” he added.

Con Ed president Timothy Cawley said the utility — currently seeking permission for a rate increase — had no idea what caused the “cascading or sort of the widespread nature of the failure” that began when workers at a power transmission station on West 59th Street saw “a number of breakers open up” at 6:47 p.m. Saturday.

There was “no indication at all” that it was the result of a cyber or “physical” attack, Cawley said.

And while the evening temperatures were warm, he said, “in terms of the peak demands that Manhattan exhibits on those hottest weekdays, the demand was very low.”

The failure of a nearby 13,000-volt distribution feeder — which may have led to an “arc and a flash” — also wouldn’t have caused the blackout, although “the reverse may be true,” Cawley said.

“In terms of the root cause, we have a team full-time on it working now. It takes time,” he said at a news conference near Con Ed’s Upper West Side Energy Control Center.

Cawley didn’t say how long the investigation would last, but Mayor Bill de Blasio said, “The full perfect report could take a number of weeks.”

At a press conference with de Blasio, NYPD Commissioner James O’Neill said that about 2,800 people had to be rescued from subway trains that got stranded by the outage and “needed assistance getting into the stations” at 86th Street and Broadway and 59th Street and Columbus Circle.

FDNY Commissioner Daniel Nigro said that more than 400 elevators got stuck when the power failed and that firefighters and cops got people “out of each and every one.”

No injuries were reported as a result of the blackout, which Con Ed said affected 72,000 customers from West 30th to West 72nd streets, between the Hudson River and Fifth Avenue.

Power was fully restored shortly after 11:30 p.m., Cawley said.

The blackout forced the evacuation of Madison Square Garden shortly after Jennifer Lopez began the second of two sold-out, back-to-back concerts there.

Tickets for Saturday’s “It’s My Party” show will be honored at a rescheduled performance on Monday, MSG said.