Augustine of Hippo — as excerpted in the Catena Aurea on Matthew 26:26

“(in Joan Tr. 26. 17. cf. Serm. 227. 1.) The Lord committed His Body and Blood to substances which are formed a homogeneous compound out of many. Bread is made of many grains, wine is produced out of many berries. Herein the Lord Jesus Christ signified us, and hallowed in His own table the mystery of our peace and unity.”