This hothead is going to have to pray for a lot of forgiveness.

A crazed woman wielding a stiletto heel and shouting “f–k your God” bashed an elderly singing subway preacher in the head on a train in Manhattan, according to disturbing video released Friday.

The 79-year-old victim was preaching aboard a southbound No. 2 train near the 42nd Street-Times Square station at around 10 a.m. on Friday, Oct. 25, when the woman removed her high heel and menaced him with it as if it were a weapon, according to cops and video of the incident.

The 30-something woman — who was dressed in a beige fur coat, black pants and a bright red wig — is seen in the footage waving the shoe at the cowering man and shouting at him.

“You want me to bust your head in this morning, huh, ­b–ch?” she said as stunned straphangers looked on.

Despite her threats, the man continued preaching and singing gospel songs — further enraging the woman, who attacked him.

“F–k your mother, f–k your God and f–k everything else. Get the f–k out of my f–king face or I’ll bust your head in!” she said.

Straphangers eventually came to the aid of the preacher, who is seen in video footage with a bloody forehead and a blood-soaked shirt.

“Jesus!” one woman says, before imploring the elderly man, who was not identified, to “sit.”

The good Samaritan then used a tissue to blot the subway holy man’s wounds as blood gushed from his head, the footage shows.

Pauliris Gonzalez, 24, of The Bronx, was on her way to work with her fiance when she saw the bizarre attack.

“[The preacher] was walking down the car talking about the Bible, and she got up and started yelling,” Gonzalez said.

“She was saying, ‘I’m going to kill you, I’m going to kill your mother.’ She threw his Bible. She was so mad, she attacked him.”

Gonzalez said the stiletto-wielding straphanger may have been transgender and likely felt “provoked” by the preacher.

But it wasn’t the first time she’s seen the unhinged woman causing trouble on a subway train, according to Gonzales.

“She cussed out the woman she said was looking at her. She was going all crazy,” Gonzalez said of an early incident.

The subway preacher was taken to NYU Langone Medical Center, where he received stitches, according to cops.

Police officers are still looking for the attacker.