The Doctrine of Justification in the Lutheran Confessions

In the 1538 edition of his commentary on Galatians, Luther speaks of this one and firm rock, which we call the doctrine of justification, that is, that we are delivered from sin, death, and devil, not through ourselves (nor certainly through our works which are of lesser value than we ourselves), but through outside help, through the Only-begotten Son of God, Jesus Christ. If the article concerning justification falls, everything falls. This is the chief article of the whole Christian doctrine, which comprehends the undemanding of all godliness. It is, therefore, of prime importance that it be well understood and constantly emphasized. As I often emphasize, the doctrine of justification must be diligently observed. In it are involved all other articles of our faith, and so long as justification is properly taught, it will be well with all other doctrines also