"The Law says, 'Do this,' and it's never done.

Grace says, 'Believe in this,' and everything is already done."

--Heidelberg Disputation (1518)

This statement highlights how important Martin Luther believed it to be that Christians understand the difference between God's law and the gospel. A life free to serve others begins with this. No matter how well you keep the law, only the free gift of the gospel can save you.