חֲזוֹן עֹבַדְיָה. מַאי שְׁנָא עֹבַדְיָה לֶאֱדוֹם וְלֹא נִיבָּא נְבוּאָה אַחֶרֶת? אָמְרוּ חֲכָמִים: עֹבַדְיָה גֵּר אֲדוֹמִי הָיָה. אָמַר הַקָּדוֹשׁ בָּרוּךְ הוּא: מֵהֶם וּבָהֶם אָבִיא עֲלֵיהֶם. יָבֹא עֹבַדְיָה שֶׁדָּר בֵּין שְׁנֵי רְשָׁעִים, אַחְאָב וְאִיזֶבֶל, וְלֹא לָמַד מִמַּעֲשֵׂיהֶם, וְיִפְרַע מֵעֵשָׂו הָרָשָׁע שֶׁדָּר בֵּין שְׁנֵי צַדִּיקִים, יִצְחָק וְרִבְקָה, וְלֹא לָמַד מִמַּעֲשֵׂיהֶם: The vision of Obadiah—Why is Obadiah different that he was chosen to prophesy concerning Edom and did not prophesy any other prophecy? Our Sages of blessed memory stated: Obadiah was an Edomite proselyte. Said the Holy One, blessed be He: From them and in them will I bring upon them. Let Obadiah, who dwelt between two wicked people, Ahab and Jezebel, and did not learn from their deeds, come and impose retribution upon Esau, who dwelt between two righteous people, Isaac and Rebecca, and did not learn from their deeds. [from Sanhedrin 39b]