Read the sentence from the speech. 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.

This sentence further refines Lincoln’s claim that

democracy should be practiced across the world.
honor is achieved through hard work and devotion.
the men who fought on the field made it a sacred place.
the war marks a turning point for freedom in the country.