Bede the Venerable — as excerpted in the Catena Aurea on Mark 3:19-22

“(ubi sup.) The Lord leads the Apostles, when they were elected, into a house, as if admonishing them, that after having received the Apostleship, they should retire to look on their own consciences. Wherefore it is said, And they came into a house, and the multitude came together again, so that they could not eat bread.”