Miserere Mei Deus

I hope the Holy Spirit moves you to listen to this performance during lent. The following comment accompanies the video.  This particular version includes the subtitles of the verses in English.

This piece is Psalm 51, but first set to music by Allegri around 1630. It is one of the finest and most popular examples of renaissance polyphony. It is often heard in Churches of the apostolic Christian tradition on Ash Wednesday[...] Beautifully performed here by The Sixteen, listen out for the simplicity, humility and reverence.

Source:BBC via YouTube