Mozart wrote his 17 Kirchensonaten or Church sonatas, or Epistle sonatas to be played during the mass at Salzburg cathedral between the readings of the Epistle and Gospel. But they are not peculiarly religious compositions.
Here are two from them : if the K67 is (relatively) reflective, the K336 is in the mood of a joyful and voluble C major piano concerto.
K67 is on the Trost.
For K336, there is one take at Arlesheim an another one on the Trost. They sound quite different with more transparency at Arlesheim an more "body" on the Trost.