Matthew 17:21

[But this kind of demon does not go out except by prayer and fasting.]”

Mark 9:29

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

1 Kings 17:20-21

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?”

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.”

Acts 13:2-3

While they were serving the Lord and fasting, the Holy Spirit said, “Set apart for Me Barnabas and Saul (Paul) for the work to which I have called them.”

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 7:5

Do not deprive each other [of marital rights], except perhaps by mutual consent for a time, so that you may devote yourselves [unhindered] to prayer, but come together again so that Satan will not tempt you [to sin] because of your lack of self-control.

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].

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.

Treasury of Scripture Knowledge

Summary

Howbeit this kind goeth not out but by prayer and fasting.

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.”

But

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?”
Daniel 9:3
So I directed my attention to the Lord God to seek Him by prayer and supplications, with fasting, sackcloth and ashes.
Mark 9:29
He replied to them, “This kind [of unclean spirit] cannot come out by anything but prayer [to the Father].”
Acts 13:2
While they were serving the Lord and fasting, the Holy Spirit said, “Set apart for Me Barnabas and Saul (Paul) for the work to which I have called them.”
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 7:5
Do not deprive each other [of marital rights], except perhaps by mutual consent for a time, so that you may devote yourselves [unhindered] to prayer, but come together again so that Satan will not tempt you [to sin] because of your lack of self-control.
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].
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.