Structure and scoring Bach structured the cantata in six
movements with choral movements framing two pairs of recitative and aria. He scored it for four vocal soloists (
soprano (S),
alto (A),
tenor (T) and
bass (B)), a
SATB mixed choir, and an
orchestra of
tromba da tirarsi (
Baroque slide trumpet) (tir), two
oboes (Ob), two
violins (Vl),
viola (Va), and
basso continuo (Bc) including
bassoon (Fg). The title of the autograph score reads "J.J. Concerto Dominica 13 p- Trinitatis" (J.J. concerto for the 13th a. Trinity, J.J. being short for Jesu juva (Jesus help).
Movements 1 The first movement, "" (You shall love God, your Lord), carries Bach's statement on the most important law, on which, according to the parallel , "hang all the law and the prophets". The words translate to "You shall love God, your Lord, with all your heart, with all your soul, with all your strength and with all your mind, and your neighbor as yourself". Bach had enlarged on the "dualism of love of God and brotherly love" already in his monumental cantata in 14 movements, , at the beginning of his first cycle. In order to show the law's universality, Bach introduces
Martin Luther's chorale "" (These are the holy ten commandments), referring to the commandments of the
Old Testament, as a foundation of the movement's structure. The tune is played in a strict
canon, the most rigid musical law as one more symbol. The canon is performed by the trumpet in the highest range, and the continuo, representing the lowest range. The tempo of the trumpet is twice as fast as the tempo of the continuo, therefore the trumpet has time to repeat first single lines and finally the complete melody of the chorale. The trumpet enters ten times, to symbolize once more the completeness of the law. The voices, representing the law of the
New Testament, engage in imitation of a theme which is derived from the chorale tune and first played by the instruments.
John Eliot Gardiner, who provides an extended analysis of the movement, concludes:
2 A short secco recitative for bass, "" (So it must be! ), summarizes the ideas.
3 An aria for soprano, "" (My God, I love You from my heart), is accompanied by two
obbligato oboes which frequently play in tender third parallels.
4 The second recitative for tenor, "" (Give me as well, my God! a Samaritan heart), is a prayer to grant a heart like the Samaritan's. It is intensified by the strings.
5 The last aria for alto with an obbligato trumpet, "" (Ah, in my love there is still ), takes the form of a
sarabande. Bach conveys the "" (imperfection) of human attempt to live by the law of love, by choosing the trumpet and composing for it "awkward intervals" and "wildly unstable notes" which would sound imperfect on the period's valveless instruments. In contrast, Bach wrote in the middle section a long trumpet solo of "ineffable beauty", as a "glorious glimpse of God's realm".
6 The closing
four-part chorale is a setting of the "
Ach Gott, vom Himmel sieh darein" hymn tune. The cantata has been published with two variant versions of the chorale text: • The BGA edition publishes the lyrics which another hand added to Bach's autograph, i.e. a stanza from Denicke's "" with the
incipit "" (You, Lord Jesus, stand as a model of your love). • The NBA publishes the lyrics according to its editor's suggestion: the stanza "" (Lord, dwell in me through faith) from Denicke's "". == Recordings ==