Commentary for Gittin 113:26

With that which he decreed against himself: They burn [him] and sprinkle [his] ashes.

In boiling semen: It is measure for measure, since the people began to whore after the daughters of Moav from his counsel (to Moav).

As the Master said: In Eruvin (21b). And he learned it from, "and much study (lahag) is a weariness of the flesh (Kohelet 12:12)": Whoever mocks (malig) much will be sentenced to weariness of the flesh; and this verse is written about the words of the Scribes (the rabbis) [as the first part of it is understood as], "My son, be careful to fulfill the words of the Scribes even more than the words of the Torah."

The prophets of the nations that worship idolatry: Bilaam - to whom the Divine Presence was revealed, yet he spoke evilly.