עַל-כֵּן יֵּאָּמַר בְסֵּפֶר מִלְחֲמֹת ה' אֶת-וָּהֵּב בְסּופָּה וְאֶת-הַנְחָּלִים אַרְנֹון (במדבר כא, יד)
- Ramban: An ancient lost book written by the wise men of those times that told the stories of the great wars.
- Rashi: Not actually a book but the “telling of G-d’s wars.”
- Targum Yonasan: Identifies this book with the Torah as a whole.
Miracles of the Canyon of Arnon
The mountains were high and the gorge deep and narrow. The Amorites hid in caves to ambush the Israelites. However, the mountain of the Land of Israel moved toward the mountain of Moab, and protrusions entered the clefts, killing the Amorites. Their blood flowed into the Arnon River. This is referred to as the miracles of the Canyons of Arnon.