en_tn/2ki/23/12.md

Josiah the king destroyed ... Josiah smashed ... The king ruined ... He broke ... he filled

Josiah would have commanded his workers to do these things. It is likely that Hilkiah and the priests who assisted him did these things. AT: "Josiah the king commanded them to destroy ... They smashed ... He had them ruin ... He had them break ... they filled" (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)

filled those places with the bones of human beings

"covered the ground with human bones so people could not use it as a shrine anymore"