'Cutoff' in the Bible

I asked, "What are these going to do?" He answered, "These horns are the ones that have scattered Judah so that there is no one to be seen. But the blacksmiths have come to terrify Judah's enemies and cut off the horns of the nations that have thrust themselves against the land of Judah in order to scatter its people."

It will happen in all the land, says the Lord, that two-thirds of the people in it will be cut off and die, but one-third will be left in it.