1)
"ki Hashem Eish Ochlah Hu", Why does Moshe describe Hashem as ?a consuming fire'?
1.
R. Bachye: Because a fire tends to destroy things quickly - Hence the Torah writes "Vehorashtem Va'avadtem Maher!.
2)
Why does the Torah repeat the word "Hu Yashmidem ve'Hu Yachni'em"?
1.
Oznayim la'Torah: Because they hint at the two sparks that shot out from the two poles of the Aron and burnt anyone who dared attack them.
