
Johann Sebastian Bach
| BWV | 138 | 
| Title | Why art thou troubled, O my heart? | 
| Composed | 5th September 1723, Leipzig | 
| Scoring | Choir 
          for 4 voices  | 
    
| Movements | Chorale 
        mit Rezitative: Why art thou troubled, O my heart?  Recitative (Bass): Ah, I am poor, bowed down with heavy sorrow Chorale mit Rezitative: I am despised Recitative (Tenor): He can and would thee not forsake Aria (Bass): Ah, comfort sweet! If God will not forsake me Recitative (Alto): With God stands all my confidence Chorale: Well then! Thus I'll as well find soft repose  | 
    
| Category | Spiritual Cantata | 
| Event | Fifteenth Sunday after Trinity | 
| Author of text | Unknown | 
| Text Chorale with Recitative: Alto solo Soprano, Alto, Tenor, Bass Oboe d`amore Violin I + II Viola Basso continuo (Cantus firmus in Soprano) Recitative: Bass solo Basso continuo Chorale with Recitative: Soprano solo Alto solo Soprano, Alto, Tenor, Bass Oboe d`amore Violin I + II Viola Basso continuo Recitative: Tenor solo Basso continuo Aria: Bass solo Violin I + II Viola Basso continuo Recitative: Alto solo Basso continuo Chorale: Soprano, Alto, Tenor, Bass Oboe d`amore Violin I + II Viola Basso continuo  | 
      
 Ah, comfort sweet! If God 
          will not forsake me,  | 
    
| Epistle | Galatians 5: 25 - 6: 10  | 
    
| Gospel | Matthew 6: 23-34  | 
    
| Bibletext | 1. Romans 7:24; 2. Psalms 42:3; 3. Psalms 147:9; 4. Hebrews 13:5; 5. Matthew 5:31 | 
| Manuscript | Singing Academy, Berlin; Estate C.Ph.E. Bach; University library, Warzawa |