
Johann Sebastian Bach
| BWV | 157 | 
| Title | I'll not let thee go | 
| Composed | 6th February 1727, Leipzig | 
| Scoring | Choir 
          for 4 voices | 
| Movements | Duetto 
        (Tenor, Bass): I'll not let thee go Aria (Tenor): I shall hold to my Jesus firmly Recitative (Tenor): My dearest Jesus thou Aria (Bass): Yes, yes, I hold to Jesus firmly Chorale: This my Jesus I'll not leave | 
| Category | Spiritual Cantata | 
| Event | The Purification of the Blessed Virgin Mary | 
| Author of text | Christian Friedrich Henrici (Picander) 1727 | 
| Text Duetto: Tenor solo, Bass solo Travers flute Oboe Violin solo Basso continuo Aria: Tenor solo Oboe d`amore Basso continuo Recitative: Tenor solo Violin I + II Viola Basso continuo Aria: Bass solo Travers flute Violin Basso contiuno Chorale: Soprano, Alto, Tenor, Bass Travers flute Oboe Violin I + II Viola Basso continuo | 
 This my Jesus I'll not leave, | 
| Epistle | Malachi 3: 1-4 | 
| Gospel | Luke 2: 22-32 | 
| Bibletext | Genesis 32:27 | 
| Manuscript | Music Sciences Institute, Halle |