Antonio Salieri (1750 - 1825), Italian composer born in Legnago in Veneto, was Kapellmeister in the imperial court of the Habsburgs in Wien. He is also famous for being a teacher of composers such as Beethoven, Schubert and Liszt.
The motet "Confirma hoc Deus" (Offertory for Pentecost) was composed in 1809. The text is taken from Psalm 67/68, vv.28-29: "Confirm, O God, what have you done for us! In your temple, overlooking Jerusalem, kings will bring gifts."
It is a choral work of simple workmanship and noble structure, which can be sung without great difficulty even by an amateur choir. Two musical themes alternate in a classical form and elegant.
I therefore propose some simple audio files for this composition, which allow the singers of each section to learn the individual part.
Study of the part of the sopranos
Study of the part of the altos
Study of the part of the tenors
Study of the part of the bass
Here's the score: