Midrash sur Les Nombres 21:24

And the children of Israel possessed themselves of the Sihon’s land, from Arnon unto Jabbok, ‎even unto the sons of Ammon, and the children of Israel dwelt in all the cities of the Amorites. ‎And the children of Israel decided to fight also against the sons of Ammon, but the Lord said ‎unto them: Do not besiege the sons of Ammon, neither provoke a battle with them, for I will ‎not give unto you aught of their land. Therefore did not the children of Israel fight against the ‎sons of Ammon, but they turned away from them and journeyed by way of Bashan towards ‎the land of Og, king of Bashan. And Og, the king of Bashan, went forth against the Israelites to ‎fight with them, and he had with him many mighty men, and a great army of the people of the ‎Amorites. And Og, the king of Bashan, was an exceedingly powerful man, but Naron, his son, ‎was even more powerful than he, and Og said within his heart: Behold all the camp of the ‎Israelites covers three Parsaoth, and now I will slay them all with one blow without sword or ‎spear. And Og ascended Mount Jahaz and took up a large stone, three Parsaoth in length, and ‎placed it upon his head and he intended to cast it upon the camp of the children of Israel, to ‎slay all the Israelites with that stone. But the angel of the Lord came and perforated the stone ‎from over his head and the stone fell upon the neck of Og, and Og fell to the ground through ‎the weight of the stone around his neck. And Moses went down to him with a few men of the ‎Israelites, and he smote Og upon his ankles with a stick and slew him. And afterwards the ‎children of Israel pursued the sons of Og and their people, and they smote them and ‎destroyed them, so that there was not left of them a remnant. Then Moses sent some of the ‎children of Israel to spy out Jaazer, for Jaazer was a very prominent city, and the spies ‎searched it, and they trusted in the Lord, and the spies fought against the people of Jaazer. ‎And these men took Jaazer and its suburbs, and the Lord delivered them into their hands, and ‎they drove away the Amorites that were there. Thus the children of Israel conquered the two ‎kings of the Amorites and their land, sixty cities on the other side of Jordan, from the brook of ‎Arnon even to Mount Hermon. And the children of Israel journeyed and they came unto the ‎plain of Moab, which is on the other side of Jordan near Jericho. And when the sons of Moab ‎heard of all the evil which the children of Israel had done unto the two kings of the Amorites, ‎to Sihon and Og, all the people of Moab were in great fear of the Israelites,‎