The Declaration was essentially an attempt to prove that rebellion was not the proper word for what they were… — Carl L. Becker

Three days after Richard Henry Lee introduced the Resolution of Independence, it was voted to appoint a committee to "prepare a declaration to the effect of the said first resolution." The committee, appointed on the following day, consisted of Thomas Jefferson, John Adams, Benjamin Franklin, Roger Sherman, and Robert R. Livingston. On the 28 of June, the committee reported to Congress the draft of a declaration which, with modifications, was finally agreed to by Congress on the 4 of July. This is the document which is popularly known as the Declaration of Independence.

The primary purpose of the Declaration was not to declare independence, but to proclaim to the world the reasons for declaring independence. It was intended as a formal justification of an act already accomplished.

What they needed, in addition to many specific grievances against their particular king, was a fundamental presupposition against kings in general. What they needed was a theory of government that provided a place for rebellion, that made it respectable, and even meritorious under certain circumstances.