2 Thessalonians 1:8

He will inflict punishment on those people who do not know God [as Savior], and on those who do not obey the Gospel message of our Lord Jesus.

Hebrews 12:29

for our God is truly a consuming fire.

Revelation 1:14-16

And His head and hair [i.e., probably meaning the hairs of His head] were as white as wool, or as snow, and His eyes were like flaming fire.

Treasury of Scripture Knowledge

Summary

And I saw as the colour of amber, as the appearance of fire round about within it, from the appearance of his loins even upward, and from the appearance of his loins even downward, I saw as it were the appearance of fire, and it had brightness round about.

Bible References

The appearance of fire

2 Thessalonians 1:8
He will inflict punishment on those people who do not know God [as Savior], and on those who do not obey the Gospel message of our Lord Jesus.
Hebrews 12:29
for our God is truly a consuming fire.
Revelation 1:14
And His head and hair [i.e., probably meaning the hairs of His head] were as white as wool, or as snow, and His eyes were like flaming fire.