2 Chronicles 34:5

5And after that, he burned the bones of the priests upon the altars of the idols. And so did he cleanse Judah and Jerusalem.
34:5The ancient Jewish burial custom was to bury the dead, and then, about a year or so later, to dig up the bones of the dead and keep them in an ossuary (a bone box). Since this verse says that the bones of these priests were burned (not their dead bodies), this apparently refers to the bones of long deceased priests, those who had served these idols.(Conte)
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