Jeremiah 6:28 describes a people who have hardened into rebellion, spreading slander and acting corruptly until they resemble the hard metals of brass and iron. The prophet Jeremiah speaks these words as God’s messenger to the people of Judah, the nation he was sent to warn before Jerusalem fell to Babylon around 586 BC.
They are all grievous rebels, going around to slander. They are brass and iron. All of them deal corruptly.
Jeremiah 6:28 (WEB)
What Jeremiah 6:28 Means
The verse begins with “grievous rebels,” a phrase describing people who have turned away from God on purpose and keep pushing against his word. “Going around to slander” means they move through the community spreading false and damaging talk about others, probably including the prophets who tried to correct them. The picture of “brass and iron” describes hardness. Metal that has been refined to its core does not bend easily, and the people’s hearts have become similarly unyielding to correction. The closing phrase, “deal corruptly,” sums up the pattern: their conduct has become twisted and dishonest from top to bottom.
The verse does not promise that these people will suddenly change, and it does not describe God’s love being withdrawn from every person who has ever sinned. It is a diagnosis within a specific historical judgment, spoken to a nation that had repeatedly refused to listen. Read honestly, it warns about the danger of hardened hearts and reminds us that God sees behavior, speech and motives clearly.
The Context of Jeremiah 6:28
The book of Jeremiah records the ministry of the prophet Jeremiah, who was active in Jerusalem roughly from 627 to 586 BC. His audience was the kingdom of Judah in its final decades, a people who trusted in their temple and their alliances while ignoring the covenant their ancestors had made with the LORD. Jeremiah himself was often rejected, mocked and persecuted for delivering messages they did not want to hear.
The verses just before and after set the scene clearly. In verse 27, God appoints Jeremiah as a “tester of metals,” an assayer who examines the people the way a refiner examines ore to see what is pure and what is worthless. Verse 29 continues the image as the bellows blow and the lead burns away, yet the wicked remain. Verse 30 closes with the people being called “rejected silver” because the LORD has rejected them. Seen this way, verse 28 is the assayer’s report on what the refining has revealed. The hardness is not an accident of the metal but the result of persistent rebellion.
Key Phrases in Jeremiah 6:28
Psalm 51:10
Create in me a clean heart, O God. Renew a right spirit within me.
(WEB)
David asks God to create a clean heart and renew a right spirit within him. Where Jeremiah describes a heart hardened into brass and iron, this psalm shows the remedy: a humble plea for God to reshape what sin has made rigid.
Ezekiel 36:26
I will also give you a new heart, and I will put a new spirit within you. I will take away the stony heart out of your flesh, and I will give you a heart of flesh.
(WEB)
God promises to replace a stony heart with a heart of flesh and to put his Spirit within his people. This passage speaks to the same problem of hardness described in Jeremiah and points to God’s own power to soften what has become unyielding.
A Short Prayer From Jeremiah 6:28
Lord, you see the motives of my heart more clearly than I do. Where I have grown hard toward you or toward the people around me, show me honestly what needs to change. Keep me from speaking carelessly about others, and give me courage to speak truth with love. Let your refining work be gentle and thorough in me, and make my heart responsive to your word. Amen.
