An Allentown man accused of a stabbing over the weekend allegedly told a witness he attacked the victim because “that’s what I do.”

Allentown police charged John Corniel, of the 900 block of Hamilton Street, with aggravated assault and simple assault in connection with the stabbing early Sunday morning at a party in the 300 block of North Ninth Street. District Judge Daniel Trexler arraigned the 26-year-old Thursday morning, setting bail at $25,000.

Police said the victim, a 44-year-old Easton man, walked into the Lehigh Valley Hospital emergency room at 17th and Chew streets and was then taken by ambulance to Lehigh Valley Hospital Cedar Crest for medical treatment. He suffered two stab wounds to his back and his right forearm and required surgery because his diaphragm was punctured and fluid was gathering around his lung, according to court records.

Police said Thursday that the victim is expected to survive.

Authorities said the assault happened about 1:10 a.m. following some kind of disturbance at the party after which the victim and his girlfriend were asked to leave. Police said a man later identified as Corniel allegedly told the victim as he was headed for the door not make Corniel have to stab him.

A witness told police that he asked Corniel why he stabbed the victim to which he allegedly responded “that’s what I do.” The witness also said that Corniel allegedly told him he plunged the entire knife into the victim.

Police said he identified Corniel as the attacker from a photo array, and that Corniel later admitted to stabbing the man with a kitchen knife.

He was sent to Lehigh County Jail after failing to post bail. Corniel’s next court date is a preliminary hearing tentatively scheduled for Sept. 22.