וַיְהִ֞י כִּשְׁמֹ֤עַ כָּל־יִשְׂרָאֵל֙ כִּֽי־שָׁ֣ב יָרָבְעָ֔ם וַֽיִּשְׁלְח֗וּ וַיִּקְרְא֤וּ אֹתוֹ֙ אֶל־הָ֣עֵדָ֔ה וַיַּמְלִ֥יכוּ אֹת֖וֹ עַל־כָּל־יִשְׂרָאֵ֑ל לֹ֤א הָיָה֙ אַחֲרֵ֣י בֵית־דָּוִ֔ד זוּלָתִ֥י שֵֽׁבֶט־יְהוּדָ֖ה לְבַדּֽוֹ׃
And it came to pass, when all Israel heard that Jeroboam was returned, that they sent and called him unto the congregation, and made him king over all Israel; there was none that followed the house of David, but the tribe of Judah only.
Find Mishnaic references to I Kings 12:20: passages from the 63 tractates of the Mishnah that cite or discuss this verse, free.