The three stated purposes for writing the constitution are establish justice, insure domestic tranquility , and secure the blessings of liberty.
There were six purposes stated for writing the U.S. Constitution (Preamble): To form a more perfect union, establish justice, insure domestic tranquility, secure the blessings of liberty to ourselves and our posterity, provide for the common defense, and promote the general welfare. These statements guide the rest of the Constitution.
The U.S. Constitution is the fundamental framework of America’s system of government.