It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us – that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion – that we here highly resolve that these dead shall not have died in vain – that this nation, under God, shall have a new birth of freedom – and that government of the people, by the people, for the people, shall not perish from the earth.

–The Gettysburg Address,
Abraham Lincoln

What is the major theme of this part of Lincoln’s speech?

We must never forget the unfinished work of the Union soldiers and their wish to be remembered.
We must preserve democracy, equality, and the Union to honor those who died fighting for the cause.
We must try to create a new freedom and a new form of government in memory of lost soldiers.