'Holy to the Lord' in the Bible

Israel was holy to the Lord,the firstfruits of His harvest.All who ate of it found themselves guilty;disaster came on them.”This is the Lord’s declaration.

And the whole valley (Hinnom) of the dead bodies and [the hill] of the ashes [long dumped there from the temple sacrifices], and all the fields as far as the brook Kidron, to the corner of the Horse Gate toward the east, shall be holy to the Lord. It (the city) will not be uprooted or overthrown anymore to the end of the age.”