Answer: Lincoln tells the people they can honor the people who fought in the Battle of Gettysburg by keeping on fighting for the ideas they gave their lives for and the battle started in the first place.
Lincoln connects the war to the nation's Declaration of Independence, the continuing cause of freedom, and a "government of the people, by the people, for the people.
Davis considered states to have the right to freedom from an oppressive government, while Lincoln believed individuals should be free from government oppression.