וַיִּתְאַנַּ֥ף יְהוָ֖ה בִּשְׁלֹמֹ֑ה כִּֽי־נָטָ֣ה לְבָב֗וֹ מֵעִ֤ם יְהוָה֙ אֱלֹהֵ֣י יִשְׂרָאֵ֔ל הַנִּרְאָ֥ה אֵלָ֖יו פַּעֲמָֽיִם׃
And the LORD was angry with Solomon, because his heart was turned away from the LORD, the God of Israel, who had appeared unto him twice,
Read halakhic rulings (Jewish law) on I Kings 11:9 from the Mishneh Torah and classical halakhic sources, free online.