Мидраш к Бамидбар 36:11

Likewise, (Ovadiah 1:1) "The vision of Ovadiah: Thus has said the L-rd G-d to Edom: We have heard a report, etc." Why did Ovadiah prophesy against Edom? To apprise us of the greatness of a tzaddik, who grew up in the lap of an evildoer but did not emulate his deeds, and how great the wickedness of an evildoer, who grew up between two righteous ones and did not emulate their deeds. Esav (Edom) grew up between two righteous ones, Isaac and Rivka, and did not emulate their deeds. Ovadiah grew up between two wicked ones, Achan and Izevel, and did not emulate their deeds. Let Ovadiah come, who grew up between two wicked ones and did not emulate their deeds, and prophecy against Esav, who grew up between two righteous ones, Isaac and Rivka, and did not emulate their deeds. Thus — "The vision of Ovadiah: Thus has said the L-rd G-d to Edom, etc." "of the families of Menasheh the son of Joseph." Just as Joseph held Eretz Yisrael dear (viz. Bereshit 50:25), so did the daughters of Tzelofchad. "And these are the names of his daughters: Machlah, Noah, Choglah, Milkah, and Tirtzah." — But perhaps all who are first in Scripture are first in worth? It is, therefore, written (Bamidbar 36:11) "And Machlah, Tirtzah, Choglah, Milkah, and Noah, the daughters of Tzelofchad, etc." (the order being changed to teach us that they were all of equal worth.)