Father Marian Rajchel performed an exorcism on the girl; he claims the texts started coming shortly thereafter.
The exorcism obviously didn't take. "The author of these texts is an evil spirit who has possessed her soul," Rajchel told local media members, the Austrian Times reported. "Clearly this young girl has been possessed, and needs further help."
Father Rajchel says that it's not uncommon for demons to possesses people and use their wireless technology.
"She will not come out of this hell. She's mine. Anyone who prays for her will die," read one message from the girl. "Shut up, preacher. You cannot save yourself. Idiot. You pathetic old preacher," said another.
Rajchel did text back, and he is also continuing to pray for the girl.