Theophylact of Ohrid — as excerpted in the Catena Aurea on Luke 21:1-4

“Or the widow may be taken to mean any soul bereft as it were of her first husband, the ancient law, and not worthy to be united to the Word of God. Who brings to God instead of a dowry faith and a good conscience, and so seems to offer more than those who are rich in words, and abound in the moral virtues of the Gentiles.”