3we have come to dedicate a portion of that field as a final resting place for those who here gave their lives that this nation might live. it is altogether fitting and proper that we should do this.

4 but, in a larger sense, we cannot dedicate we cannot consecrate we cannot hallow this ground. the brave men, living and dead, who struggled here have consecrated it, far above our poor power to add or detract. the world will little note, nor long remember, what we say here, but it can never forget what they did here.

5 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 this earth.

the contrast between sections three and five suggests
a) that lincoln seeks to honor fallen soldiers and strengthen the resolve of the union.
b) that lincoln is unwilling to allow the south to return to the union before many more battles.
c) that lincoln is concerned about how the world will long remember the events on the battlefield.
d) that lincoln is not concerned about how the world will long remember the events on the battlefield.