Theophylact of Ohrid — as excerpted in the Catena Aurea on Mark 12:41-44

“Now there was a praiseworthy custom amongst the Jews, that those who were able and willing should put something into the treasury, for the maintenance of the priests, the poor, and the widows; wherefore there is added, And many that were rich cast in much. But whilst many people were so engaged, a poor widow came up, and shewed her love by offering money according to her ability; wherefore it is said, And there came a certain poor widow, and she threw in two mites, which make a farthing.”