וַיִּ֛בֶן אוּרִיָּ֥ה הַכֹּהֵ֖ן אֶת־הַמִּזְבֵּ֑חַ כְּכֹ֣ל אֲשֶׁר־שָׁלַח֩ הַמֶּ֨לֶךְ אָחָ֜ז מִדַּמֶּ֗שֶׂק כֵּ֤ן עָשָׂה֙ אוּרִיָּ֣ה הַכֹּהֵ֔ן עַד־בּ֥וֹא הַמֶּֽלֶךְ־אָחָ֖ז מִדַּמָּֽשֶׂק׃
Rashi on II Kings
Before [king Achaz] came. [He built the altar] before the king came from Damesek.1Achaz decided to worship the idols of Arom because he believed they were responsible for his defeat. See II Divrei Hayomim 28:23.