This Aria is titled "Schafe können sicher weiden". It is the 9th part of the larger work "Was mir behagt, ist nur die muntre Jagd", BWV 208. In short, "The Hunting Cantata". The instrumentation includes Voices: Two sopranos, tenor, bass, chorus, a taille (alto oboe), two recorders, two oboes, bassoon, horns, strings, and basso continuo.
Accompaniment is available in the original key (B flat) as well as an arrangement in G major.