Isaiah 1:22
Thy silver is become dross, thy wine mixed with water:
Cross-reference
In Isaiah 1:25, God promises to purge the dross — directly answering the corruption described here with a refining judgment.
In Jeremiah 6:28-30, the same 'rejected silver' metaphor describes Israel's corruption — refining fails because the wicked are not purged.
In Lamentations 4:1, gold grown dim and pure gold changed parallels Isaiah's silver turned to dross — lamenting Jerusalem's lost splendor.
In Lamentations 4:2, the precious sons of Zion are valued as earthen pots — similar to Isaiah's silver becoming dross, showing degradation.
In Ezekiel 22:18-22, the same dross-of-silver metaphor describes Israel as impure metal — God will refine them in judgment.
In Jeremiah 6:30, Israel is called 'rejected silver' — the same silver/dross metaphor for God's rejection of corrupt people.