Father Tomas: I'll tell the family.
Marcus: No! This is not just a possession.
Father Tomas: But they have the right to know!
Marcus: This is a revenge. Can you not see that? Forty years ago, it had Regan's body and it lost it. That is a demon with a 40-year grudge. Now? It wants to torture her daughter in front of her. I'm not going to give it the satisfaction.
Father Tomas: You're asking me to lie!
Marcus: I was this close at the Rance house, I got it swimmin' laps in the lake, God is in me. Yeah! Lie!