Leslie M. Grant · Comments On Mark

The disciples in the house questioned the Lord as to why they were not able to cast out the demon, and were told, "This kind can come forth by nothing but by prayer and fasting." There are therefore different kinds of spirits. However, the connection of this verse and verse 19 shows that we are faithless if we lack prayer and fasting. For prayer expresses dependence on God, while fasting emphasizes self-denial or no confidence in the flesh.