They know they are not perfect, that they stumble and fall in their daily walk with God. They are secure in knowing that when they repent and seek forgiveness, God will forgive them because of Jesus. The Bible is God's infallible Word, communicated through human writers who were directed by the Holy Spirit. Sin is rebellion against God in thought, word and deed. Every person is guilty of sin against God.
Sin also is the cause of the bad things people do to each other.
Lutherans proudly display the sign of the cross, a symbol used by all Christians. The cross symbolizes both the terrible death that Jesus suffered as punishment for their sins, and the love of God in offering this sacrifice for them. How Lutherans Got Started Lutherans take their name from Martin Luther. He was a German priest who sought to reform the Roman Catholic Church in the early 1500's by returning it to its Biblical foundation. Luther's writing, debating, preaching and teaching sparked the Protestant Reformation.