Theophylact of Ohrid — as excerpted in the Catena Aurea on Mark 8:10-21

“The Lord indeed quits the Pharisees, as men uncorrected; for where there is a hope of correction, there it is right to remain; but where the evil is incorrigible, we should go away. There follows: Now they had forgotten to take bread, neither had they in the ship with them more than one loaf.”