And unclean spirits, when they saw him, fell down before him, and cried, saying, You are the Son of God.
All Commentaries on Mark 3:11 Go To Mark 3
Augustine of Hippo
AD 430
The “faith that works by love,” is not the same faith that demons have. “For the devils also believe and tremble,” but do they love? If they had not believed, they would not have said: “You are the holy one of God” or “You are the Son of God.” But if they had loved, they would not have said: “What have we to do with you?” Letter , To Sixtus.