A Colorado teacher resigned after a note saying “I want to kill children” was projected during class on a screen.

Kris Burghart, who teaches at Otho E. Stuart Middle School, resigned Friday after confessing to writing the message, the Denver Post reported.

“Silent reading … I want to kill children but I am a loving Christian man who never would hurt a flee so please sit down and read,” the message on the projector reportedly said.

The district said the eighth-grade teacher was placed on administrative leave Dec. 5 after a parent notified school officials about the note.

“A student took a picture of it on his phone,” school spokesperson Track Rudinick told the Denver Post. “The principal talked to [Burghart] and he admitted writing it.”

Prior to the resignation, superintendent Chris Fielder sent a letter to parents saying the note was inappropriate.

“It is my firm belief that at no time, under any circumstance is it acceptable to threaten harm to our students — not as a teaching tool, not as venting frustration, not as a joke,” Fielder wrote.