John Chrysostom
Where indeed the subject treated was the Jewish cleansing, He altogether passed it by, but as the tithe is a kind of almsgiving, and the time was not yet come for absolutely destroying the customs of the law, therefore He says, these ought ye to have done.
But that the Pharisees were so, cannot be wondered at. But if we who are counted worthy to be the temples of God suddenly become graves full only of corruption, this is indeed the lowest wretchedness.
Now He says, give alms, not injury. For almsgiving is that which is free from all injury. It makes all things clean, and is more excellent than fasting; which though it be the more painful, the other is the more profitable. It enlightens the soul, enriches it, and makes it good and beautiful, He who resolves to have compassion on the needy, will sooner cease from sin. For as the physician who is in the habit of healing the diseased is easily grieved by the misfortunes of others; so we, if we have devoted ourselves to the relief of others, shall easily despise things present, and be raised up to heaven. The unction of almsgiving then is no slight good, since it is capable of being applied to every wound.