At that time, Jesus withdrew to the region of Tyre and Sidon.
And behold, a Canaanite woman of that district came and called out,
“Have pity on me, Lord, Son of David!
My daughter is tormented by a demon.”
But Jesus did not say a word in answer to her.
Jesus’ disciples came and asked him,
“Send her away, for she keeps calling out after us.”
He said in reply,
“I was sent only to the lost sheep of the house of Israel.”
But the woman came and did Jesus homage, saying, “Lord, help me.”
He said in reply,
“It is not right to take the food of the children
and throw it to the dogs.”
She said, “Please, Lord, for even the dogs eat the scraps
that fall from the table of their masters.”
Then Jesus said to her in reply,
“O woman, great is your faith!
Let it be done for you as you wish.”
And the woman’s daughter was healed from that hour.
Matthew 15: 21-18
1. This woman of Canaan, who has just now been brought before us in the lesson of the Gospel, shows us an example of humility, and the way of godliness; shows us how to rise from humility unto exaltation. Now she was, as it appears, not of the people of Israel, of whom came the Patriarchs, and Prophets, and the parents of the Lord Jesus Christ according to the flesh; of whom the Virgin Mary herself was, who was the Mother of Christ. This woman then was not of this people; but of the Gentiles. For, as we have heard, the Lord “departed into the coasts of Tyre and Sidon, and behold, a woman of Canaan came out of the same coasts,”  and with the greatest earnestness begged of Him the mercy to heal her daughter, “who was grievously vexed with a devil.” Tyre and Sidon were not cities of the people of Israel, but of the Gentiles; though they bordered on that people. So then, as being eager to obtain mercy she cried out, and boldly knocked; and He made as though He heard her not,  not to the end that mercy might be refused her, but that her desire might be enkindled; and not only that her desire might be enkindled, but that, as I have said before, her humility might be set forth. Therefore did she cry, while the Lord was as though He heard her not, but was ordering in silence what He was about to do. The disciples besought the Lord for her, and said, “Send her away; for she crieth after us.” And He said, “I am not sent, but unto the lost sheep of the house of Israel.” 
2. Here arises a question out of these words; “If He was not sent but unto the lost sheep of the house of Israel, how came we from among the Gentiles into Christ’s fold? What is the meaning of the so deep economy  of this mystery, that whereas the Lord knew the purpose of His coming — that He might have a Church in all nations, He said that He was not sent, but unto the lost sheep of the house of Israel’?” We understand then by this that it behoved Him to manifest His Bodily presence, His Birth, the exhibition of His miracles, and the power of His Resurrection, among that people: that so it had been ordained, so set forth from the beginning, so predicted, and so fulfilled; that Christ Jesus was to come to the nation of the Jews, to be seen and slain, and to gain from among them those whom He foreknew. For that people was not wholly condemned, but sifted. There was among them a great quantity of chaff, but there was also the hidden worth  of the grain; there was among them that which was to be burnt, there was among them also that wherewith the barn was to be filled. For whence came the Apostles? whence came Peter? whence the rest?