Charles Ellicott Commentary 2 Chronicles 24:7

"For the sons of Athaliah, that wicked woman, had broken up the house of God; and also all the dedicated things of the house of Jehovah did they bestow upon the Baalim." — 2 Chronicles 24:7 (ASV)

For the sons of Athaliah. —There is nothing corresponding to the statements of this verse in the parallel account. Literally, For Athaliah, the evildoer (or, who did wickedly, 2 Chronicles 20:35), her sons had broken down (Isaiah 5:5; Psalms 80:14) the house of God. Ahaziah and his elder brothers, and perhaps other relatives, may be intended. The young princes thus gratified the queen’s hatred of the exclusive cultus of Jehovah. (Compare to 2 Chronicles 22:3–4.) Perhaps some portions of the Temple buildings were demolished, in order to make room for the temple of Baal. (Compare to Notes on 2 Kings 11:18.)

The dedicated things — that is, the money given for the use of the sanctuary.

Did they bestow upon Baalim. —Or, they made into the Baals, that is, used them in making idolatrous images and symbols. (Compare to the same expression, Hosea 2:8: Her silver and gold, which they made into Baal; compare also to Hosea 8:4.)