Theophylact of Ohrid
Catena Aurea · Markusevangelium 12
And Jesus sat over against the treasury, and beheld how the people cast money into the treasury: and many that were rich cast in much. And there came a certain poor widow, and she threw in two mites, which make a farthing. And he called unto him his disciples, and saith unto them, Verily I say unto you, That this poor widow hath cast more in, than all they which have cast into the treasury: For all they did cast in of their abundance; but she of her want did cast in all that she had, even all her living.
Or else; That widow is the soul of man, which leaving Satan to which it had been joined, casts into the temple two mites, that is, the flesh and the mind, the flesh by abstinence, the mind by humility, that so it may be able to hear that it has cast away all its living, and has consecrated it, leaving nothing for the world of all that it possessed.