'Devoted' in the Bible

The son of Carmi: Achar, the troubler of Israel, who acted unfaithfully in the matter of the devoted thing.

These, mentioned by name, came in the days of Hezekiah, king of Judah, and attacked their tents and the Meunites who were found there. And they devoted them to destruction to this day, and they settled among them because [there was] pasture there for their flocks.