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Where this quote comes from

“Injustice anywhere is a threat to justice everywhere”

Verified

Verified. Martin Luther King Jr. wrote this in the Letter from Birmingham Jail, dated 16 April 1963, while he was held in jail in Birmingham, Alabama. It was his answer to critics who called him an outsider.

The words in context

The line is usually shared alone, but in the letter it sits inside an argument:

Moreover, I am cognizant of the interrelatedness of all communities and states. I cannot sit idly by in Atlanta and not be concerned about what happens in Birmingham. Injustice anywhere is a threat to justice everywhere. We are caught in an inescapable network of mutuality, tied in a single garment of destiny. Whatever affects one directly, affects all indirectly.

The sentence before it explains why he wrote it. King lived in Atlanta, and critics said he had no business in Birmingham. “Injustice anywhere” was his answer to the charge that he was an outsider.

Who he was answering

King was arrested on 12 April 1963, about a week into the Birmingham campaign. The same day, eight Birmingham clergy members published a statement in the Birmingham News calling the demonstrations “unwise and untimely” and appealing for “law and order and common sense” (King Institute). His reply, addressed to “My Dear Fellow Clergymen,” takes their objections one at a time, and the outsider charge comes first. A year later he revised the letter into a chapter of Why We Can’t Wait (1964).

What usually gets cut

Most posters stop after the first sentence. The next two are the reasoning:

  • “We are caught in an inescapable network of mutuality, tied in a single garment of destiny.”
  • “Whatever affects one directly, affects all indirectly.”

If you’re quoting it in an essay, include at least the second sentence.

How to cite it

  • MLA: King, Martin Luther, Jr. “Letter from Birmingham Jail.” 16 Apr. 1963. African Studies Center, University of Pennsylvania.
  • APA: King, M. L., Jr. (1963, April 16). Letter from Birmingham Jail. African Studies Center, University of Pennsylvania.
  • Chicago: King, Martin Luther, Jr. “Letter from Birmingham Jail.” April 16, 1963. African Studies Center, University of Pennsylvania.

Related quote images

Quote image: “Injustice anywhere is a threat to justice everywhere.” Martin Luther King Jr., Letter from Birmingham Jail, 1963.

“Injustice anywhere is a threat to justice everywhere.”

Letter from Birmingham Jail, 1963

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Quote image: “One has not only a legal but a moral responsibility to obey just laws. Conversely, one has a moral responsibility to disobey unjust laws.” Martin Luther King Jr., Letter from Birmingham Jail, 1963.

“One has not only a legal but a moral responsibility to obey just laws. Conversely, one has a moral responsibility to disobey unjust laws.”

Letter from Birmingham Jail, 1963

Save
Quote image: “Injustice anywhere is a threat to justice everywhere.” Martin Luther King Jr., Letter from Birmingham Jail, 1963.

“Injustice anywhere is a threat to justice everywhere.”

Letter from Birmingham Jail, 1963

Save

Frequently asked questions

Who said “Injustice anywhere is a threat to justice everywhere”?

Martin Luther King Jr., in the Letter from Birmingham Jail, dated 16 April 1963.

What does “injustice anywhere is a threat to justice everywhere” mean?

That no community is sealed off from another. King’s next sentences explain it: “We are caught in an inescapable network of mutuality, tied in a single garment of destiny. Whatever affects one directly, affects all indirectly.” Staying out of someone else’s struggle isn’t really neutral.

Why was King in Birmingham?

He was leading the Birmingham campaign against segregation. He was arrested on 12 April 1963 for violating Alabama’s law against mass public demonstrations (King Institute). Critics called him an outsider, and this sentence was his reply.

How do I cite this quote in MLA?

King, Martin Luther, Jr. “Letter from Birmingham Jail.” 16 Apr. 1963. African Studies Center, University of Pennsylvania, www.africa.upenn.edu/Articles_Gen/Letter_Birmingham.html. APA and Chicago formats are on this page under “How to cite it.”

How this page was made: written with AI assistance from the primary sources listed on our sources page.Every quotation and fact was checked against those sources by Maddy on 6 October 2026. How we verify · Last updated 6 October 2026