Matthew 3:12
whose winnowing shovel is in his hand, and he will thoroughly clean his threshing floor, and gather his wheat into the storehouse; but the chaff he will burn with an inextinguishable fire.
Revelation 14:10-11
he shall drink of the wine of the wrath of God, mingled undiluted in the cup of his indignation, and he shall be tormented with fire and sulphur before the angels and before the Lamb.
Mark 9:43-49
And if your hand offends you, cut it off; it is better for you to enter into life crippled, than having two hands to go away into hell, into the inextinguishable fire.
1 Thessalonians 2:15-16
who also killed the Lord Jesus and the prophets, and persecuted us, and who please not God and are hostile to all men,
Revelation 19:17-21
And I saw an angel standing on the sun, and he cried with a loud voice, saying to all the birds that fly in mid-heaven, Come, assemble yourselves to the great supper of God,
Revelation 21:8
But the fearful and unbelieving and abominable and murderers and fornicators and sorcerers and idolaters and all liars shall have their part in the lake which burns with fire and sulphur, which is the second death.