8 That daughter of the ruler of the synagogue was a figure of the people of the Jews, for whose sake Christ had come, who said, “I am not sent but unto the lost sheep of the house of Israel.” But the woman who suffered from the issue of blood, figured the Church from among the Gentiles, to which Christ was not sent in His bodily presence. He was going to the former, He was intent on her recovery; meanwhile the latter runs to meet Him, touches His border as though He knew it not; that is, she is healed by Him who is in some sense absent.
He says, “Who touched Me?” as though He would say; I do not know this people; “A people whom I have not known has served Me. Some one has touched Me. For I perceive that virtue is gone out of Me;” that is, that My Gospel has gone out and filled the whole world. Now it is the border that is touched, a small and outside part of the garment. Consider the Apostles as it were the garment of Christ. Among them Paul was the border; that is, the last and least. For he said of himself that he was both; “I am the least of the Apostles.” For he was called after them all, he believed after them all, he healed more than they all.
The Lord was not sent but “unto the lost sheep of the house of Israel.” But because a “people whom He had not known, was also to serve Him, and to obey Him in the hearing of the ear,” He made mention of them too when He was among the others. For the same Lord said in a certain place, “Other sheep I have which are not of this fold; them also I must bring, that there may be one fold and one shepherd.”
Source: Sermons on Selected Lessons of the New Testament (New Advent)