The cantata is scored like
chamber music. Only the chorale is set for four parts; the alto voice sings of man's sin, the soprano of God's grace, and the bass is God's voice in the opening movement. On some copies of the parts, the movement is marked aria, although it is unknown if that marking was authorized by Bach. Formally it has some characteristics of an aria, such as a
ritornello to open the movement and frame the text sections, and some aspects of an
arioso, for example the free setting of the sections. The last section, which speaks of God's "" (too fervent mercy) is embedded in the ritornello, then the ritornello is repeated once more. One
motif in the ritornello is similar to one in the chorus "" from Bach's
St John Passion and may illustrate undecidedness in both cases. The following three movements, two
recitatives and an expressive aria, are only accompanied by the continuo, the last aria also by an
obbligato oboe. The closing chorale is set for four parts; the melody in the soprano is doubled by the horn, the oboes, and violin I. == Recordings ==