Albert Barnes Commentary 2 Chronicles 28:24

"And Ahaz gathered together the vessels of the house of God, and cut in pieces the vessels of the house of God, and shut up the doors of the house of Jehovah; and he made him altars in every corner of Jerusalem." — 2 Chronicles 28:24 (ASV)

Compare the note on 2 Kings 16:17. The temple worship was suspended, the lamps were put out, and the doors were shut to prevent the priests from entering. The Jews still celebrate a yearly fast in commemoration of this time of affliction.

Altars. As the one altar for sacrifice, which the Law alone allowed, symbolized the doctrine of one God, so these many altars spoke unmistakably of the all-embracing polytheism practiced by Ahaz.