Numbers 16:35-
40 And there came out a fire from the LORD, and consumed the
two hundred and fifty men that offered incense. ... [
To be] a memorial unto the children of Israel,
that no stranger, which [
is] not of the seed of Aaron,
come near to offer incense before the LORD; that he be not as Korah, and as his company: as the LORD said to him by the hand of Moses.
Numbers 16:46 And Moses said unto Aaron, Take a censer,
and put fire therein
from off the altar, and put on incense, and go quickly unto the congregation, and make
an atonement for them: for
there is wrath gone out from the LORD;
the plague is begun.
Hebrews 12:29 For our God [
is] a consuming fire.