Jeremiah 6:27-29

International Standard Version

²⁷ “I’ve made you an assayer^[a] of my people,
    as well as^[b] a fortress.
You know how
    to test their way.”
²⁸ All of them are very rebellious,
    going around as slanderers.
They’re bronze and iron,
    and all of them are corrupt.
²⁹ The bellows blow fiercely to consume
    the lead with the fire.
The assayer^[c] keeps on refining,
    but the impurities^[d] aren’t separated out.