Matthew 3:12
His winnowing-shovel is in His hand, and He will make a thorough clearance of His threshing-floor, gathering His wheat into the storehouse, but burning up the chaff in unquenchable fire."
Revelation 14:10-11
he shall drink the wine of God's anger which stands ready, undiluted, in the cup of His fury, and he shall be tormented with fire and sulphur in the presence of the holy angels and of the Lamb.
Mark 9:43-49
If your hand should cause you to sin, cut it off: it would be better for you to enter into Life maimed, than remain in possession of both your hands and go away into Gehenna, into the fire which cannot be put out.
1 Thessalonians 2:15-16
Those Jewish persecutors killed both the Lord Jesus and the Prophets, and drove us out of their midst. They are displeasing to God, and are the enemies of all mankind;
Revelation 19:17-21
And I saw a single angel standing in the full light of the sun, who cried in a loud voice to all the birds that flew across the sky, "Come and be present at God's great supper,
Revelation 21:8
But as for cowards and the unfaithful, and the polluted, and murderers, fornicators, and those who practise magic or worship idols, and all liars--the portion allotted to them shall be in the Lake which burns with fire and sulphur. This is the Second Death."