וַיְחַפְּא֣וּ בְנֵֽי־יִשְׂרָאֵ֗ל דְּבָרִים֙ אֲשֶׁ֣ר לֹא־כֵ֔ן עַל־יְהוָ֖ה אֱלֹהֵיהֶ֑ם וַיִּבְנ֨וּ לָהֶ֤ם בָּמוֹת֙ בְּכָל־עָ֣רֵיהֶ֔ם מִמִּגְדַּ֥ל נוֹצְרִ֖ים עַד־עִ֥יר מִבְצָֽר׃
and the children of Israel did impute things that were not right unto the LORD their God, and they built them high places in all their cities, from the tower of the watchmen to the fortified city;
Read Kabbalistic (mystical) interpretations of II Kings 17:9: Zohar and classical Jewish mystical sources, free online.