Exodus 3:2

2 aAnd bthe angel of the Lord appeared to him in a flame of fire out of the midst of a bush. He looked, and behold, the bush was burning, yet it was not consumed.

Exodus 19:18

18Now cMount Sinai was wrapped in smoke because the Lord had descended on it in fire. The smoke of it went up like the smoke of a kiln, and dthe whole mountain trembled greatly.
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