Mark 9:29

And He said to them, "This kind can come out by nothing, except by prayer."

Matthew 12:45

Then it goes and takes along with itself seven other spirits more evil than itself, and, entering in, they dwell there; and the last state of that man becomes worse than the first. So shall it be also to this wicked generation."

Matthew 17:20

And He saith to them, "Because of your little faith. For verily I say to you, if ye have faith as a grain of mustard seed, ye shall say to this mountain, 'Remove hence yonder,' and it will be removed, and nothing shall be impossible to you."

Luke 11:26

Then it goes and takes with it seven other spirits more wicked than itself; and, entering in, they make their abode there; and the last state of that man is worse than the first."

Acts 9:40-41

But Peter, having put them all forth, and bowing his knees, prayed; and, turning to the body, he said, "Tabitha, arise!" And she opened her eyes; and, seeing Peter, she sat up.

Acts 14:23

And, having appointed elders for them in every assembly; and, having prayed with fastings, they commended them to the Lord on Whom they had believed.

1 Corinthians 9:27

But I buffet my body, and bring it into bondage; lest, by any means, after having preached to others, I myself should be rejected.

2 Corinthians 6:5

in stripes, in imprisonments, in tumults, in toilings, in watchings, in fastings;

2 Corinthians 11:27

in toil and hardship, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.

2 Corinthians 12:8

Concerning this thing I besought the Lord thrice, that it might depart from me.

Ephesians 6:18

with all prayer and supplication praying at every opportunity in the Spirit, and watching thereunto in all perseverance and supplication for all the saints;

James 5:15

and the prayer of faith will save the sick, and the Lord will raise him up; and, if he have committed sins, it shall 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 and takes along with itself seven other spirits more evil than itself, and, entering in, they dwell there; and the last state of that man becomes worse than the first. So shall it be also to this wicked generation."
Luke 11:26
Then it goes and takes with it seven other spirits more wicked than itself; and, entering in, they make their abode there; and the last state of that man is worse than the first."

By prayer

Matthew 17:21
["But this kind goes not out, except by prayer and fasting.]
Acts 9:40
But Peter, having put them all forth, and bowing his knees, prayed; and, turning to the body, he said, "Tabitha, arise!" And she opened her eyes; and, seeing Peter, she sat up.
2 Corinthians 12:8
Concerning this thing I besought the Lord thrice, that it might depart from me.
Ephesians 6:18
with all prayer and supplication praying at every opportunity in the Spirit, and watching thereunto in all perseverance and supplication for all the saints;
James 5:15
and the prayer of faith will save the sick, and the Lord will raise him up; and, if he have committed sins, it shall be forgiven him.

Fasting

Acts 14:23
And, having appointed elders for them in every assembly; and, having prayed with fastings, they commended them to the Lord on Whom they had believed.
1 Corinthians 9:27
But I buffet my body, and bring it into bondage; lest, by any means, after having preached to others, I myself should be rejected.
2 Corinthians 6:5
in stripes, in imprisonments, in tumults, in toilings, in watchings, in fastings;
2 Corinthians 11:27
in toil and hardship, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.