2 Peter 2:4

For God did not spare angels when they had sinned, but hurling them down to Tartarus consigned them to caves of darkness, keeping them in readiness for judgement.

Jude 1:6

And angels--those who did not keep the position originally assigned to them, but deserted their own proper abode--He reserves in everlasting bonds, in darkness, in preparation for the judgement of the great day.

Matthew 25:41

"Then will He say to those at His left, "'Begone from me, with the curse resting upon you, into the Fire of the Ages, which has been prepared for the Devil and his angels.

Revelation 20:10

and the Devil, who had been leading them astray, was thrown into the Lake of fire and sulphur where the Wild Beast and the false Prophet were, and day and night they will suffer torture until the Ages of the Ages.

Revelation 12:7-9

And war broke out in Heaven, Michael and his angels engaging in battle with the Dragon.

Luke 8:31

and they besought Him not to command them to be gone into the Bottomless Pit.

Luke 10:18

"I saw Satan fall like a lightning-flash out of Heaven," He replied.

John 8:44

The father whose sons you are is the Devil; and you desire to do what gives him pleasure. *He* was a murderer from the beginning, and does not stand firm in the truth--for there is no truth in him. Whenever he utters his lie, he utters it out of his own store; for he is a liar, and the father of lies.

2 Peter 2:5

And He did not spare the ancient world, although He preserved Noah, a herald of righteousness, with seven others, when He brought a deluge on the world of the ungodly.

2 Peter 2:9

Since all this is so, the Lord knows how to rescue godly men from temptation, and on the other hand how to keep the unrighteous under punishment in readiness for the Day of Judgement,

2 Peter 2:11

while angels, though greater than they in might and power, do not bring any insulting accusation against such in the presence of the Lord.

1 John 3:8

He who is habitually guilty of sin is a child of the Devil, because the Devil has been a sinner from the very beginning. The Son of God appeared for the purpose of undoing the work of the Devil.

Jude 1:13

wild waves of the sea, foaming out their own shame; wandering stars, for whom is reserved dense darkness of age-long duration.

Revelation 20:1-3

Then I saw an angel coming down from Heaven, having the key of the bottomless pit, and upon his arm he carried a great chain.

Matthew 8:29

They cried aloud, "What hast Thou to do with us, Thou Son of God? Hast Thou come here to torment us before the time?"

Mark 5:7

crying out in a loud voice, "What hast Thou to do with me, Jesus, Son of God Most High? In God's name I implore Thee not to torment me."

Romans 8:32

He who did not withhold even His own Son, but gave Him up for all of us, will He not also with Him freely give us all things?

Romans 11:21

Do not be puffed up with pride. Tremble rather--for if God did not spare the natural branches, neither will He spare you.

Treasury of Scripture Knowledge

Summary

For if God spared not the angels that sinned, but cast them down to hell, and delivered them into chains of darkness, to be reserved unto judgment;

Bible References

Spared

2 Peter 2:5
And He did not spare the ancient world, although He preserved Noah, a herald of righteousness, with seven others, when He brought a deluge on the world of the ungodly.
Romans 8:32
He who did not withhold even His own Son, but gave Him up for all of us, will He not also with Him freely give us all things?
Romans 11:21
Do not be puffed up with pride. Tremble rather--for if God did not spare the natural branches, neither will He spare you.

The angels

Luke 10:18
"I saw Satan fall like a lightning-flash out of Heaven," He replied.
John 8:44
The father whose sons you are is the Devil; and you desire to do what gives him pleasure. *He* was a murderer from the beginning, and does not stand firm in the truth--for there is no truth in him. Whenever he utters his lie, he utters it out of his own store; for he is a liar, and the father of lies.
1 John 3:8
He who is habitually guilty of sin is a child of the Devil, because the Devil has been a sinner from the very beginning. The Son of God appeared for the purpose of undoing the work of the Devil.
Jude 1:6
And angels--those who did not keep the position originally assigned to them, but deserted their own proper abode--He reserves in everlasting bonds, in darkness, in preparation for the judgement of the great day.

But

Matthew 8:29
They cried aloud, "What hast Thou to do with us, Thou Son of God? Hast Thou come here to torment us before the time?"
Matthew 25:41
"Then will He say to those at His left, "'Begone from me, with the curse resting upon you, into the Fire of the Ages, which has been prepared for the Devil and his angels.
Mark 5:7
crying out in a loud voice, "What hast Thou to do with me, Jesus, Son of God Most High? In God's name I implore Thee not to torment me."
Luke 8:31
and they besought Him not to command them to be gone into the Bottomless Pit.
Revelation 12:7
And war broke out in Heaven, Michael and his angels engaging in battle with the Dragon.
Revelation 20:2
He laid hold of the Dragon--the ancient serpent--who is the Devil and the Adversary, and bound him for a thousand years, and hurled him into the bottomless pit.

Into

2 Peter 2:11
while angels, though greater than they in might and power, do not bring any insulting accusation against such in the presence of the Lord.
Jude 1:6
And angels--those who did not keep the position originally assigned to them, but deserted their own proper abode--He reserves in everlasting bonds, in darkness, in preparation for the judgement of the great day.

To be

2 Peter 2:9
Since all this is so, the Lord knows how to rescue godly men from temptation, and on the other hand how to keep the unrighteous under punishment in readiness for the Day of Judgement,
Jude 1:13
wild waves of the sea, foaming out their own shame; wandering stars, for whom is reserved dense darkness of age-long duration.