The Refectory Theophile (Francois Theophile Etienne) Gide (1822-1890)

The picture has something of this: people, church, group, indoors, many, choir, priest, man, woman, seat, bench, furniture, monastery, nun, Communion.
Perhaps it’s a painting of a priest standing in front of a group of people sitting at a table in a large room with white tables and white tablecloths.