Psalm 12:6 in the King James Version
The words of the LORD are pure words: as silver tried in a furnace of earth, purified seven times.
Context
5 “Because of the oppression of the weak and because of the groaning of the needy, I will now arise,” says the LORD; “I will set him in safety from those who malign him.”
6 The LORD’s words are flawless words, as silver refined in a clay furnace, purified seven times.
7 You will keep them, LORD. You will preserve them from this generation forever.