Isaiah 1:25 in the World English Bible
I will turn my hand on you, thoroughly purge away your dross, and will take away all your tin.
Context
24 Therefore saith the Lord, the LORD of hosts, the mighty One of Israel, Ah, I will ease me of mine adversaries, and avenge me of mine enemies:
25 And I will turn my hand upon thee, and purely purge away thy dross, and take away all thy tin:
26 And I will restore thy judges as at the first, and thy counsellors as at the beginning: afterward thou shalt be called, The city of righteousness, the faithful city.