Jeremiah 9:5 Meaning and Explanation
“And they will deceive every one his neighbour, and will not speak the truth: they have taught their tongue to speak lies, and weary themselves to commit iniquity.”
King James Version (KJV)
Read this verse in context with translation switching:
Read Full Chapter →Words can either make a neighborhood safe or turn every conversation into a place of danger. Jeremiah 9:5 matters because it names the exhausting pattern beneath ordinary dishonesty: lies are learned, repeated, and joined to wrongdoing until trust between people is deeply wounded.
Jeremiah exposes a society in which deception has become practiced speech and persistent conduct. The people's lying tongues reveal a deeper refusal of truth, and their labor in sin shows how far communal life has been damaged.
The Context of Jeremiah 9:5
Jeremiah opens this chapter grieving over the slain people of Judah and longing to withdraw from a community marked by treachery. Verses 3 through 6 focus especially on false speech, slander, deception, and the people's failure to know the LORD. Verse 5 develops that accusation by describing neighbors deceiving one another and training their tongues in lies. The following verses announce the LORD's searching judgment, comparing deceitful speech to an arrow and exposing peaceful words that conceal an ambush. Later in the chapter, Jeremiah explains that Judah's ruin is connected with forsaking the LORD's law and following the desires of their hearts.
What Does Jeremiah 9:5 Mean?
The verse begins at the close range of daily life: "every one his neighbour." Deceit is not described as an occasional public scandal; it has entered ordinary relationships. They "will not speak the truth," a deliberate refusal that leaves neighbors unable to rely on one another's words. Jeremiah then says they "have taught their tongue to speak lies." A tongue has no moral purpose apart from the person speaking, so this vivid wording points to settled habits. Their speech has been trained toward falsehood. The final phrase reaches further, saying they "weary themselves to commit iniquity." Sin has become effort and occupation. They expend themselves in practices that damage fellowship and provoke the LORD's concern for his people.
Jeremiah 9:5 belongs to a sustained lament over Judah's corruption before judgment falls. The chapter does not isolate false speech from worship and covenant life. Verse 3 says the people do not know the LORD, and verse 6 says that through deceit they refuse to know him. Their lying therefore expresses a broken relation to God as well as injury toward their neighbors. The warning in verse 4 to beware even of brother and neighbor shows the social cost of this condition. When speech is bent toward manipulation, peace becomes fragile and communities lose the confidence needed for faithful life together. Jeremiah's grief is appropriate because the ruin described later in the chapter grows in soil already poisoned by treachery.
The Bible repeatedly joins truthfulness with walking before God. The LORD is not indifferent to hidden motives or calculated words, and Jeremiah's image of a trained tongue invites honest attention to the habits that form our speech. Christ teaches that our words arise from the abundance of the heart, bringing this issue beneath outward manners into the inner life. His own witness is faithful and true, and his people are called to lay aside lying as they belong to one another. That call is realistic about the damage of falsehood and hopeful about renewal. Truth spoken with care can begin to repair what deception has worn down in homes, friendships, workplaces, and congregations.
Bible Verses Related to Jeremiah 9:5
“He that walketh uprightly, and worketh righteousness, and speaketh the truth in his heart.”
- Psalm 15:2
“Lying lips are abomination to the LORD: but they that deal truly are his delight.”
- Proverbs 12:22
“O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.”
- Matthew 12:34
“Wherefore putting away lying, speak every man truth with his neighbour: for we are members one of another.”
- Ephesians 4:25
Where Jeremiah 9:5 Echoes in Scripture
Ephesians 4:25 gives a strong later echo of Jeremiah's concern: believers are to put away lying and speak truth with one another because they belong together as members of one body. Jeremiah portrays a people whose deceit has dissolved neighborly trust. Ephesians presents truthful speech as part of the renewed life shaped by Christ. The later instruction does not soften Jeremiah's warning; it shows the communal healing that truth serves.
How to Apply Jeremiah 9:5 Today
This verse invites us to notice the small places where untruth can become a trained reflex: exaggerating a story, concealing a harmful motive, passing along an unverified report, or offering reassuring words while planning against someone. Confession may need to be specific, especially where a lie has harmed another person's name or safety. We can also cultivate habits that make truth easier to speak, such as pausing before repeating a claim, keeping promises, and bringing difficult concerns directly to the person involved. Truthfulness includes gentleness and discretion. It seeks the good of the neighbor whom God sees and values.
Reflection & Prayer
Where has speech in our daily life become careless, guarded, or shaped by fear? We may ask the Lord to search our hearts, cleanse our words from deception, and give us courage to speak truth with humility and love. May our conversations become places where others can safely trust what is said.