The preamble to the Constitution is NOT the same as the preamble to the declaration of Independence. They were completely separate documents written more than a decade apart.

in fact:

The Declaration was rarely mentioned during the debates about the United States Constitution, and its language was not incorporated into that document.[44]: 92  George Mason’s draft of the Virginia Declaration of Rights was more influential, and its language was echoed in state constitutions and state bills of rights more often than Jefferson’s words.[44]: 90 [21]: 165–167  “In none of these documents”, wrote Pauline Maier, “is there any evidence whatsoever that the Declaration of Independence lived in men’s minds as a classic statement of American political principles.”[21]: 167