כִּֽי־קָרַ֣ע יִשְׂרָאֵ֗ל מֵעַל֙ בֵּ֣ית דָּוִ֔ד וַיַּמְלִ֖יכוּ אֶת־יָרָבְעָ֣ם בֶּן־נְבָ֑ט וידא [וַיַּדַּ֨ח] יָרָבְעָ֤ם אֶת־יִשְׂרָאֵל֙ מֵאַחֲרֵ֣י יְהוָ֔ה וְהֶחֱטֵיאָ֖ם חֲטָאָ֥ה גְדוֹלָֽה׃
For He rent Israel from the house of David; and they made Jeroboam the son of Nebat king; and Jeroboam drew Israel away from following the LORD, and made them sin a great sin.
Read Kabbalistic (mystical) interpretations of II Kings 17:21: Zohar and classical Jewish mystical sources, free online.