Chorus in late Baroque style

I've attached below the opening 32 bars of a movement for strings, chorus, and continuo in the late Baroque style. The text is taken from Goethe's Einsamkeit; the full text and a sample translation can be found at the end.

The form of the chorus will probably end up being rondo-like: A B A' C A. Section A here refers to the opening 32 bars, and A' is A in the dominant key. Section B will deal with the next two lines of text, and likewise with C. I'm interested in how you might proceed with B & C. What kind of textures? What material from A do you want to use? How would B and C relate to each other?

Einsamkeit

Die ihr Felsen und Bäume bewohnt, o heilsame Nymphen,
Gebet Jeglichem gern, was er im stillen begehrt!
Schaffet dem Traurigen Trost, dem Zweifelhaften Belehrung,
Und dem Liebenden gönnt, daß ihm begegne sein Glück.
Denn euch gaben die Götter, was sie den Menschen versagten,
Jeglichem, der euch vertraut, hilfreich und tröstlich zu sein.

You who dwell in rocks and trees, o salutary nymphs,
grant gladly to each what he silently desires!
Create solace for the grieving, give instruction to the uncertain,
and to the lover grant that he might meet happiness.
For the gods gave you what they denied to men:
to be a comfort and an aid to all who trust you.