Jesus not only refrained from punishing his detractors for their insensitivity, but he did not even give them a simple rebuke. This gives further evidence of his meekness and refutes their malicious talk. He exhibits further proof of his glory by the signs that were to follow and the refutations that would become more explicit. For these reasons he went about in all the cities, in the countryside and in the synagogues, instructing all to respond to those who attacked him, not with fresh villification but with ever greater benevolence. So do good to your companions not for their sake alone but for God’s sake. Whatever they may do, do not cease doing them good. Your reward will be greater. When you are villified, if you quit doing good, you signify that you are seeking the praise of others, not the praise of God.
For this reason Christ was sent to teach us that he came simply to do good. He did not wait for the sick to come to him. He himself hurried to them, bearing them a twofold blessing: the gospel of the reign of God and the healing of their diseases. And for this he went everywhere, not overlooking the slightest village.
John Chrysostom, The Gospel of Matthew, Homily 32.3in Manlio Simonetti (ed), Matthew 1-13, Ancient Christian Commentary on Scripture New Testament Ia, (InterVarsity Press, 2001) 190.