And he said unto them,
This kind can come forth by nothing, but by prayer and fasting.
All Commentaries on Mark 9:29 Go To Mark 9
Gregory The Dialogist
AD 604
Mor. x., 30: But he who is freed from the power of the evil spirit is thought to be dead; for whosoever has already subdued earthly desires, puts to death within himself his carnal mode of life, and appears to the world as a dead man, and many look upon him as dead; for they who know not how to live after the Spirit, think that he who does not follow after carnal pleasures is altogether dead.