A priest in Poland says “a demon” is taunting him with texts after he tried to perform an exorcism on an adolescent girl. Apparently the procedure didn’t work, and now “a demon” is inhabiting her body and using her cell phone to send him offensive text messages, according to the Austrian Times.

Parish priest Father Marian Rajchel started getting the text messages after he had attempted an exorcism on a teenage girl. One the texts from the girl’s cell phone number allegedly read, “She will not come out of this hell. She’s mine. Anyone who prays for her will die.” The priest says that he then prayed for the young lady, then sent her another text message, getting the message in return: “Shut up, preacher. You cannot save yourself. Idiot. You pathetic old preacher.”

The priest said the devil is quick to use technology and that “Often the owners of mobile phones are not even aware that they are being used like this, however in this case it is clear.”

“Clearly this young girl has been possessed, and needs further help,” he told reporters.