This is one of the most beautiful works of holy music:

Edward Higginbottom - Allegri: Miserere mei, Deus

https://www.youtube.com/watch?v=rs5bc_P1kKo

"With all my heart
I praise the Lord,
and with all that I am
I praise His holy name!

With all my heart
I praise the Lord!
I will never forget
how kind He has been."

(Psalm 103:1-2, CEV)