Luther’s teaching: justification is the imputation of the righteousness of
Christ; no previous disposition is necessary to justification; a mere
ignoring by God of our sin and no longer holding our sin against us;
called justification  “snow covered dung.”
Biblical argument:
1 Corinthians 6:11  That is what some of you used to be;
but now you have had yourselves washed, you were sanctified,
you were justified in the name of the Lord Jesus Christ and in the
Spirit of our God.
Church’s teaching: justification is the supernatural sanctification and renewal
of the person who thus becomes holy and pleasing to God; the
sinner is made holy, restored to God’s friendship, in the state
of grace.