וַיִּ֥בֶן מִזְבְּח֖וֹת לְכָל־צְבָ֣א הַשָּׁמָ֑יִם בִּשְׁתֵּ֖י חַצְר֥וֹת בֵּית־יְהוָֽה׃
And he built altars for all the host of heaven in the two courts of the house of the LORD.
Read midrashic interpretation of II Kings 21:5: and classical rabbinic exegesis.