Philippe Jaroussky: Nisi Dominus IV - Vivaldi.

Latin libretto:

Cum dederit dilectis suis
somnum;
Ecce haereditas Domini, filii:
Merces, fructus ventris.


English translation:

When he has given sleep
to those he loves,
Behold, children are an inheritance
of the Lord,
A reward, the fruit of the womb.