Here are some choral pieces my choir is doing for Lent. Links go to the Choral Public Domain Library (or “Liberry”) as seminarians from St. Charles in Philly would say.
Miserere Mei– di Lasso
O vos omnes – Casals (no score available)
Peccantem me quotidie – Morales
Salvator Mundi – Tallis
Surely, he hath born our griefs – G.F. Handel