Answer:
Establish Justice
US Constitution authorized Congress to create a Federal Judicial System to carryout Justice
Ensuring Domestic Tranquility
To make sure society is at peace; the local government has the police force, states have the national guards, and the federal government has the armed services
Provide for the Common Defense
To defend our land; Us Constitution calls the president to be the "Commander in Chief" of the Armed Forces and Congress has the power to raise an army
Promote the General Welfare
What the government should do to help those in need; like social security, financial aid, etc
Secure the Blessing of Liberty
Americans are free to criticize and petition the government