The quote you provided refers to a noble and significant cause which the speaker, likely a historical figure, believes to be of paramount importance. The specific "sacred cause" mentioned often pertains to a moral or social justice issue, such as abolition, civil rights, or another important movement meant to improve the human condition.
The speaker is appealing to the audience, urging them to take action and highlighting the impact of their decisions on countless lives. This suggests a sense of urgency and responsibility towards making a positive change.
If you’re looking for a specific context or example of who might have spoken these words, it may relate to figures involved in major social movements, such as abolitionists during the 19th century. Would you like me to provide more detail on a particular historical context or figure?