Exodus 3:2
And the angel of the LORD appeared to him in a flame of fire out of the middle of a bush: and he looked, and, behold, the bush burned with fire, and the bush was not consumed.
Torrey's Topical Textbook—AKJV

Exodus 19:18
And mount Sinai was altogether on a smoke, because the LORD descended on it in fire: and the smoke thereof ascended as the smoke of a furnace, and the whole mount quaked greatly.
Torrey's Topical Textbook—AKJV