Zechariah 13:8-9

8In the whole country,’ says the Lord, ‘two thirds of the people will die. But one third will still be living there.

9I will bring these people through fire. As men clean silver in the fire, so I will clean them. As men test gold in the fire, so I will test them. They will speak my name and I will answer them. I will say, “They are my people.” They will say, “The Lord is our God.” ’