Lutherans take their name from Martin Luther who, after careful study of God's Word in the Holy Scriptures, taught that no matter how hard they try, people cannot earn God's forgiveness or a place in heaven through their own actions. It is a gift that people receive through faith in Jesus alone.
Lutherans often refer to the four "solas" (Latin for "alone") as a summary of the faith that gives them hope:
For more information check out what the Lutheran Church - Missouri Synod believes, teaches and confesses at: http://lcms.org/belief-and-practice.