In both courtyards of the house of the LORD, he built altars to all the host of heaven.
How delightful were our meditations on the last reign! How many pleasing views had we of Sion in its glory (that is, in its purity and in its triumphs), of the king in his beauty! (for Isa 33:17 refers to Hezekiah), and (as it follows there, Kg2 21:20) Jerusalem was a quiet habitation because a city of righteousness, Isa 1:26.
Commenting on 2 Kings 21:1-9
And he built altars for all the host of heaven,.... Sun, moon, and stars: in the two courts of the house of the Lord; in the court of the priests, and in the court of the people; and all this must be supposed to be done, not as soon as he began to reign, but when he was grown up to man's estate, and had...
the two courts of the house of the Lord--the court of the priests, and the large court of the people.