Mark 9:29

He replied to them, “This kind [of unclean spirit] cannot come out by anything but prayer [to the Father].”

1 Kings 17:20-22

He called to the Lord and said, “O Lord my God, have You brought further tragedy to the widow with whom I am staying, by causing her son to die?”

2 Kings 4:33-34

So he went in, shut the door behind the two of them, and prayed to the Lord.

Daniel 9:3

So I directed my attention to the Lord God to seek Him by prayer and supplications, with fasting, sackcloth and ashes.

Matthew 12:45

Then it goes and brings with it seven other spirits more wicked than itself, and they go in and make their home there. And the last condition of that man becomes worse than the first. So will it also be with this wicked generation.”

Matthew 17:20

He answered, “Because of your little faith [your lack of trust and confidence in the power of God]; for I assure you and most solemnly say to you, if you have [living] faith the size of a mustard seed, you will say to this mountain, ‘Move from here to there,’ and [if it is God’s will] it will move; and nothing will be impossible for you.

Luke 11:26

Then it goes and brings seven other spirits more evil than itself, and they go in [the person] and live there; and the last state of that person becomes worse than the first.”

Acts 9:40-41

But Peter sent them all out [of the room] and knelt down and prayed; then turning to the body he said, “Tabitha, arise!” And she opened her eyes, and when she saw Peter, she sat up.

Acts 14:23

When they had appointed elders for them in every church, having prayed with fasting, they entrusted them to the Lord in whom they believed [and joyfully accepted as the Messiah].

1 Corinthians 9:27

But [like a boxer] I strictly discipline my body and make it my slave, so that, after I have preached [the gospel] to others, I myself will not somehow be disqualified [as unfit for service].

2 Corinthians 6:5

in beatings, in imprisonments, in riots, in labors, in sleepless nights, in hunger,

2 Corinthians 11:27

in labor and hardship, often unable to sleep, in hunger and thirst, often [driven to] fasting [for lack of food], in cold and exposure [without adequate clothing].

2 Corinthians 12:8

Concerning this I pleaded with the Lord three times that it might leave me;

Ephesians 6:18

With all prayer and petition pray [with specific requests] at all times [on every occasion and in every season] in the Spirit, and with this in view, stay alert with all perseverance and petition [interceding in prayer] for all God’s people.

James 5:15

and the prayer of faith will restore the one who is sick, and the Lord will raise him up; and if he has committed sins, he will be forgiven.

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

This

Matthew 12:45
Then it goes and brings with it seven other spirits more wicked than itself, and they go in and make their home there. And the last condition of that man becomes worse than the first. So will it also be with this wicked generation.”
Luke 11:26
Then it goes and brings seven other spirits more evil than itself, and they go in [the person] and live there; and the last state of that person becomes worse than the first.”

By prayer

1 Kings 17:20
He called to the Lord and said, “O Lord my God, have You brought further tragedy to the widow with whom I am staying, by causing her son to die?”
2 Kings 4:33
So he went in, shut the door behind the two of them, and prayed to the Lord.
Matthew 17:21
[But this kind of demon does not go out except by prayer and fasting.]”
Acts 9:40
But Peter sent them all out [of the room] and knelt down and prayed; then turning to the body he said, “Tabitha, arise!” And she opened her eyes, and when she saw Peter, she sat up.
2 Corinthians 12:8
Concerning this I pleaded with the Lord three times that it might leave me;
Ephesians 6:18
With all prayer and petition pray [with specific requests] at all times [on every occasion and in every season] in the Spirit, and with this in view, stay alert with all perseverance and petition [interceding in prayer] for all God’s people.
James 5:15
and the prayer of faith will restore the one who is sick, and the Lord will raise him up; and if he has committed sins, he will be forgiven.

Fasting

Daniel 9:3
So I directed my attention to the Lord God to seek Him by prayer and supplications, with fasting, sackcloth and ashes.
Acts 14:23
When they had appointed elders for them in every church, having prayed with fasting, they entrusted them to the Lord in whom they believed [and joyfully accepted as the Messiah].
1 Corinthians 9:27
But [like a boxer] I strictly discipline my body and make it my slave, so that, after I have preached [the gospel] to others, I myself will not somehow be disqualified [as unfit for service].
2 Corinthians 6:5
in beatings, in imprisonments, in riots, in labors, in sleepless nights, in hunger,
2 Corinthians 11:27
in labor and hardship, often unable to sleep, in hunger and thirst, often [driven to] fasting [for lack of food], in cold and exposure [without adequate clothing].

General references

2 Kings 20:10
Hezekiah answered, “It is easy for the shadow to go forward ten steps; no, but let the shadow turn backward ten steps.”