Revelation 20:15

And if anyone was not found having been written in the Book of Life, he was cast into the Lake of Fire.

Matthew 25:41

Then He also shall say to those on the left hand, Depart from Me, you cursed, into everlasting fire prepared for the Devil and his angels.

John 3:36

He who believes on the Son has everlasting life, and he who does not believe the Son shall not see life, but the wrath of God abides upon him.

Mark 9:43-48

And if your hand offends you, cut it off. It is better for you to enter into life maimed than to have two hands to go into hell, into the fire that never shall be quenched

Acts 4:12

And there is salvation in no other One; for there is no other name under Heaven given among men by which we must be saved.

Revelation 19:20

And the beast was taken, and with him the false prophet doing signs before it, (by which he deceived those who had received the mark of the beast), and those who had worshiped his image. The two were thrown alive into the Lake of Fire burning with brimstone.

Matthew 13:42

and shall cast them into a furnace of fire. There shall be wailing and gnashing of teeth.

Matthew 13:50

and shall cast them into the furnace of fire. There shall be wailing and gnashing of teeth.

Mark 16:16

He who believes and is baptized will be saved, but he who does not believe will be condemned.

John 3:18-19

He who believes on Him is not condemned, but he who does not believe is condemned already, because he has not believed in the name of the only-begotten Son of God.

John 14:6

Jesus said to him, I am the Way, the Truth, and the Life; no one comes to the Father but by Me.

Hebrews 2:3

how shall we escape if we neglect so great a salvation, which at the first began to be spoken by the Lord, and was confirmed unto us by those who heard Him;

Hebrews 12:25

See that you do not refuse Him who speaks. For if they did not escape, those who refused him that spoke on earth, much more we shall not escape if we turn away from Him who speaks from Heaven,

1 John 5:11-12

And this is the record, that God has given to us everlasting life, and this life is in His Son.

Revelation 20:12

And I saw the dead, the small and the great, stand before God. And books were opened, and another book was opened, which is the Book of Life. And the dead were judged out of those things which were written in the books, according to their works.

Treasury of Scripture Knowledge

Summary

And whosoever was not found written in the book of life was cast into the lake of fire.

Bible References

Whosoever

Mark 16:16
He who believes and is baptized will be saved, but he who does not believe will be condemned.
John 3:18
He who believes on Him is not condemned, but he who does not believe is condemned already, because he has not believed in the name of the only-begotten Son of God.
John 14:6
Jesus said to him, I am the Way, the Truth, and the Life; no one comes to the Father but by Me.
Acts 4:12
And there is salvation in no other One; for there is no other name under Heaven given among men by which we must be saved.
Hebrews 2:3
how shall we escape if we neglect so great a salvation, which at the first began to be spoken by the Lord, and was confirmed unto us by those who heard Him;
Hebrews 12:25
See that you do not refuse Him who speaks. For if they did not escape, those who refused him that spoke on earth, much more we shall not escape if we turn away from Him who speaks from Heaven,
1 John 5:11
And this is the record, that God has given to us everlasting life, and this life is in His Son.

Was cast

Revelation 19:20
And the beast was taken, and with him the false prophet doing signs before it, (by which he deceived those who had received the mark of the beast), and those who had worshiped his image. The two were thrown alive into the Lake of Fire burning with brimstone.
Matthew 25:41
Then He also shall say to those on the left hand, Depart from Me, you cursed, into everlasting fire prepared for the Devil and his angels.
Mark 9:43
And if your hand offends you, cut it off. It is better for you to enter into life maimed than to have two hands to go into hell, into the fire that never shall be quenched

General references

Psalm 97:3
A fire goes before Him and burns up His enemies round about.
Ecclesiastes 12:14
For God shall bring every work into judgment, with every secret thing, whether it is good, or whether evil.
Galatians 6:5
For each one will bear his own load.