Hebrews 12:29
for our God is a consuming fire.
2 Thessalonians 1:8
in flaming fire, to take vengeance on those who know not God, and who obey not the gospel of our Lord Jesus Christ;
2 Peter 3:10-12
But the day of the Lord will come as a thief, in which the heavens shall pass away with a great noise, and the elements shall melt with fervent heat, and the earth, and the works that are on it, shall be burned up.
Revelation 11:5
And if any man will injure them, fire proceeds out of their mouth, and devours their enemies; and if any one will injure them, he must be killed in this way.
Revelation 20:15
And if any one was not found written in the book of life, he was thrown into the lake of fire.