Final answer:
Abraham Lincoln called for renewed faith in America's future in his Gettysburg Address, emphasizing a new birth of freedom and the importance of government of the people, by the people, for the people.
Step-by-step explanation:
The speaker who called for renewed faith in America's future with the statement, "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," was Abraham Lincoln in his Gettysburg Address.
When Lincoln referred to "a new birth of freedom," he meant that the nation would be revitalized and experience a fresh start towards securing liberty and equality for all citizens. His statement about "government of the people, by the people, for the people" emphasized the importance of a democratic government that is elected by and serves the people.