I read Zechariah 13:
“This third I will bring into the fire; I will refine them like silver and test them like gold. They will call on my name and I will answer them; I will say, ‘They are my people,’ and they will say, ‘The Lord is our God. ‘ ”
-Zechariah 13:9 (NIV)
(2 minutes & 29 seconds of archived audio)