Grace, a Good Song Sung Often
Martin Luther
A good song may well be sung often. Grace consists in this, that God is merciful to us, shows Himself gracious for the sake of the Lord Christ, forgives all sins, and will not impute them unto us for eternal death. This is grace: the forgiveness of sins for the sake of the Lord Christ, the covering up of all sins.
Source: Quoted in Ewald M. Plass, What Luther Says, A Practical In-home Theology for the Active Christian. St. Louis: Concordia Publishing House. 1959 Edition, 10th Printing (1994), p. 603