Targum sobre Números 21:14

Therefore it is said in the book of the Law, where are recorded the wars of the Lord: Eth and Heb, who had been smitten with the blast of the leprosy, and had been banished beyond the confine of the camp, made known. to Israel that Edom and Moab were concealed among the mountains in ambush, to destroy the people of the house of Israel. But the Lord of the world made a sign to the mountains, which pressed one to another so that they died: and their blood flowed through a valley on the brink of the Arnon (or, a valley adjoining Arnon).

Therefore it is said in the Book of the Law of the Lord, which is likened to a Book of Wars: The miracles and mighty acts which the Lord wrought for His people, the sons of Israel, when they stood by the Red Sea, so did He with them when they were at the fords of the vale of Arnona.