Mark 9:29

He said to them, "Nothing can make this kind come out but prayer and fasting."

Matthew 12:45

Then it goes off to fetch seven other spirits worse than itself; they go in and dwell there, and the last state of that man is worse than the first. This is how it will be with the present evil generation."

Matthew 17:20

He said to them, "Because you have so little faith. I tell you truly, if you had faith the size of a grain of mustard-seed, you could say to this hill, 'Move from here to there,' and remove it would; nothing would be impossible for you."

Luke 11:26

Then it goes off to fetch seven other spirits worse than itself; they go in and dwell there, and the last state of that man is worse than the first."

Acts 9:40-41

Peter put them all outside; then he knelt down and prayed, and turning to the body said, "Tabitha, rise." She opened her eyes, and on seeing Peter she sat up.

Acts 14:23

They chose presbyters for them in every church, and with prayer and fasting entrusted them to the Lord in whom they had believed.

2 Corinthians 6:5

by lashes, by imprisonment; mobbed, toiling, sleepless, starving;

2 Corinthians 12:8

three times over I prayed the Lord to make it leave me,

Ephesians 6:18

praying at all times in the Spirit with all manner of prayer and entreaty ??be alive to that, attend to it unceasingly, interceding on behalf of all the saints

James 5:15

the prayer of faith will restore the sick man, and the Lord will raise him up; even the sins he has committed will be forgiven him.

Treasury of Scripture Knowledge

Summary

And he said unto them, This kind can come forth by nothing, but by prayer and fasting.

Bible References

This

Matthew 12:45
Then it goes off to fetch seven other spirits worse than itself; they go in and dwell there, and the last state of that man is worse than the first. This is how it will be with the present evil generation."
Luke 11:26
Then it goes off to fetch seven other spirits worse than itself; they go in and dwell there, and the last state of that man is worse than the first."

By prayer

Acts 9:40
Peter put them all outside; then he knelt down and prayed, and turning to the body said, "Tabitha, rise." She opened her eyes, and on seeing Peter she sat up.
2 Corinthians 12:8
three times over I prayed the Lord to make it leave me,
Ephesians 6:18
praying at all times in the Spirit with all manner of prayer and entreaty ??be alive to that, attend to it unceasingly, interceding on behalf of all the saints
James 5:15
the prayer of faith will restore the sick man, and the Lord will raise him up; even the sins he has committed will be forgiven him.

Fasting

Acts 14:23
They chose presbyters for them in every church, and with prayer and fasting entrusted them to the Lord in whom they had believed.
2 Corinthians 6:5
by lashes, by imprisonment; mobbed, toiling, sleepless, starving;