Numbers 31:8

חמשת מלכי מדין THE FIVE KINGS OF MIDIAN — But can I not see that Scripture has enumerated five; why, then, does it feel compelled to say that there were five? But it is to tell you that even as they had all been alike in the plot, so, too, they were treated alike in the punishment that befell them (cf. Rashi on Genesis 25:22, where, as here, the total of the names mentioned is stated) (Sifrei Bamidbar 157:5). — Balaam had gone there to receive the reward for the 24,000 whom he had made to fall of Israel through his counsel and now also he left Midian to meet Israel and gave them bad advice: viz., he said to them, “If, when you were 600,000 you were unable to overcome them, now you come to war against them with 12,000?” They gave him his full reward and did not stint it (they slew him) (Sifrei Bamidbar 157:5). בחרב [BALAAM ALSO … THEY SLEW] WITH THE SWORD — He came against Israel exchanging his metier (the sword) for their metier (the mouth), for they conquer only through their mouth — through prayer and petition, and he came and availed himself of their craft to curse them with his mouth. They, therefore, also came against him and exchanged their craft for the craft of the heathen peoples who come with the sword, as it is said, (Genesis 27:40) “And by thy sword shalt thou live” (cf. Rashi on Numbers 22:23).

And they slew the kings of Midyan, beside the rest of them that were slain; namely, Evi, and Reqem, and Żur, and Ḥur, and Reva, five kings of Midyan: Bil῾am also the son of Be῾or they slew with the sword.

וְאֶת־מַלְכֵ֨י מִדְיָ֜ן הָרְג֣וּ עַל־חַלְלֵיהֶ֗ם אֶת־אֱוִ֤י וְאֶת־רֶ֙קֶם֙ וְאֶת־צ֤וּר וְאֶת־חוּר֙ וְאֶת־רֶ֔בַע חֲמֵ֖שֶׁת מַלְכֵ֣י מִדְיָ֑ן וְאֵת֙ בִּלְעָ֣ם בֶּן־בְּע֔וֹר הָרְג֖וּ בֶּחָֽרֶב׃