Day 15: The Preamble – What’s the Constitution For?

Engage: Fifty-Two Words That Changed History

“We the People of the United States, in Order to form a more perfect Union…”

These opening words of the Constitution contain a revolutionary idea. Not “We the States.” Not “By order of the King.” Not even “We the Government.” We the People. The government’s power comes from ordinary citizens, and the Constitution exists to serve them.

But what exactly did the founders want this new government to do? They answered in just 52 words.

Explore: The Six Purposes

The Preamble lists six goals for the new government:

  1. “Form a more perfect Union” – Fix the disasters of the Articles of Confederation. Create a nation that actually functions as one country, not thirteen squabbling states.
  2. “Establish Justice” – Create a fair legal system. Under the Articles, disputes between states had no resolution. Debtors in one state could flee to another. The new government would provide consistent justice.
  3. “Insure domestic Tranquility” – Prevent internal chaos like Shays’ Rebellion. The government must be strong enough to keep peace within the nation’s borders.
  4. “Provide for the common defence” – Protect against foreign enemies. The Articles left America vulnerable—states wouldn’t fund the army, foreign powers didn’t respect treaties. The new government would fix this.
  5. “Promote the general Welfare” – Help the nation prosper. This phrase would become one of the Constitution’s most debated—how much should government do to help citizens thrive?
  6. “Secure the Blessings of Liberty to ourselves and our Posterity” – Protect freedom not just now but for future generations. The Constitution wasn’t meant to serve just the founders but their children’s children’s children.

Explain: Words With Power

The Preamble doesn’t grant any specific powers—those come in the Articles that follow. Instead, it establishes the Constitution’s purpose and philosophy. Courts have used it to interpret the rest of the document when meaning is unclear.

“We the People” was particularly bold. The Articles of Confederation began “We the undersigned Delegates of the States.” That document was an agreement between state governments. The Constitution was something new: a social contract between the government and the people themselves.

This phrase also cleverly solved a practical problem. The framers didn’t know which states would ratify. Rather than list states by name (and look foolish if some refused), they spoke in the name of all Americans.

Elaborate: Living vs. Original Intent

The Preamble’s purposes have been debated for over 200 years:

“Promote the general Welfare” – Does this allow expansive social programs? Or does it just mean the government should create conditions where people can prosper on their own? Progressives cite this for the New Deal, Medicare, and social safety nets. Conservatives argue it’s about limited government providing security and justice, not redistributing wealth.

“Provide for the common defence” – Does this require a massive standing military? Or should America avoid “foreign entanglements” as Washington warned? This phrase has justified everything from the Louisiana Purchase to the War on Terror.

“More perfect Union” – The grammar is technically wrong—perfect is an absolute, it can’t have degrees. But this “more perfect” captures something important: the founders knew they hadn’t achieved perfection. They were improving on the Articles, making progress, but the work would never end. Each generation must continue forming “a more perfect union.”

Evaluate: Promise vs. Reality

The Preamble makes grand promises. How well has the Constitution delivered?

“Establish Justice” – The Constitution originally protected slavery. Women couldn’t vote. Native Americans weren’t citizens. Justice was established for some, denied to others. It took a civil war, constitutional amendments, and ongoing civil rights struggles to expand justice.

“Secure the Blessings of Liberty” – Liberty for whom? The same men who wrote about liberty owned human beings. Even after slavery ended, Jim Crow laws, Japanese internment, and other injustices showed how fragile liberty can be.

“To ourselves and our Posterity” – The founders thought beyond themselves. The amendment process they included has allowed the Constitution to evolve. We’re the posterity they wrote for.

The Preamble describes not what America was in 1787, but what it aspired to become. The gap between the Preamble’s ideals and America’s reality has driven reform movements for over two centuries. Every generation decides what these 52 words mean for their time.

Key Vocabulary

  • Preamble: An introductory statement explaining the purpose of a document
  • Popular Sovereignty: The principle that government’s power comes from the people
  • General Welfare: The well-being of all citizens (interpretation varies widely)
  • Posterity: Future generations; descendants

Think About It

If you were writing a preamble for a constitution today, what purposes would you list? Would you keep all six of the founders’ goals? Add new ones? Why?

Additional Resources

Primary Source: Read the full Constitution as signed in 1787: https://www.archives.gov/founding-docs/constitution-transcript

Notice how the Preamble flows directly into Article I with no chapter break. The founders saw the purposes and the powers as one continuous document. Read the Preamble aloud—it was meant to be spoken, proclaimed, not just read silently.


Tomorrow: We’ll explore federalism—how the Constitution divides power between the national government and the states, creating a system unlike anything that existed before.