RobH_en_tn/2ki/23/12.md

Josiah the king destroyed ... Josiah smashed ... and threw

Josiah would have commanded his workers to do these things. It is likely that Hilkiah and the priests who assisted him did these things. Alternate translation: "Josiah the king commanded them to destroy ... He had them smash ... had them throw" (See: rc://en/ta/man/translate/figs-metonymy)

the kings of Judah had made ... Manasseh had made

Manasseh and the kings of Judah probably commanded their workers to make these things. Alternate translation: "the kings of Judah had had their workers make ... Manasseh had had his workers make" (See: rc://en/ta/man/translate/figs-metonymy)

Kidron Valley

place name. See how you translated this in 2 Kings 23:4. (See: rc://en/ta/man/translate/translate-names)