Elisabeth Cruciger is the first female Lutheran hymn writer. In fact, her hymn was included in the very first evangelical hymnal, published in 1524. With her life and her hymn, she becomes a witness, an example, and a proclaimer of the gospel to us almost 500 years later.
Even though we are tempted to add our personal opinions to the meaning of Jesus' life and death, to increase the meaning of His sacrifice, there's only one thing that makes Christians "Christian." Christ crucified for us for the forgiveness of sin.