What phrase in the preamble demonstrates the specific powers of the constitution?

The appropriate response is "The Preamble does not plot the forces of the Constitution." The Preamble serves exclusively as a presentation, and does not allocate forces to the national government, nor does it give particular constraints on government activity. Because of the Preamble's constrained nature, no court has ever utilized it as an unequivocal factor in the event of mediation, aside from as respects silly case.