Final answer:
The phrase 'to promote the general welfare' which signifies that the government has a Constitutional duty to work for the well-being of its citizens, is listed in the Preamble of the Constitution. The Preamble states the reasons why the Constitution was established making it of paramount importance.
Step-by-step explanation:
The Constitution, specifically in the Preamble, includes among the fundamental purposes of government, 'to promote the general welfare.' This line is one of six reasons/purposes listed why the U.S. Constitution was established. The Preamble sets forth general goals and purposes the Constitution is meant to serve. The phrase 'to promote the general welfare' expresses the idea that the government has a Constitutional responsibility to work for the well-being of all its citizens.
Learn more about Preamble of the Constitution