In this sermon, the speaker urges Christians in America to take action against evil and fight for righteousness. He references the story of the White Rose, a group of university students in Munich who resisted the Hitler regime, as an example of the courage and faith needed in times of trial. The speaker emphasizes the importance of using the current moment, or "kairos," as an opportunity to serve God and preserve the legacy of faith and freedom. He also criticizes the lack of moral leadership in politics and calls for a return to righteousness and justice in the nation's business.