Final answer:
Lincoln's purpose in the excerpt is to rally emotional support for a unified country.
Step-by-step explanation:
Lincoln's purpose in the excerpt is to rally emotional support for a unified country. He emphasizes the sacrifices made by the soldiers who fought in the Gettysburg battle and calls on the living to remain dedicated to the cause for which they fought. He expresses the need for the nation to have a new birth of freedom and to ensure that the government is of the people, by the people, and for the people.
Learn more about Lincoln's purpose in the excerpt