“Let the children be fed first. For it is not right to take the food of the children and throw it to the dogs.” (Mark 7:27)

Before Jesus said these words, he spoke to the disciples, “I was sent only to the lost sheep of the house of Israel.” (Matthew 15:24)

However, the woman of Gentile replied Jesus humorously, “Lord, even the dogs under the table eat the children's scraps.” (Mark 7:28)

Logically, this woman should turn away. Perhaps her wisdom tells her that Jesus is someone who does not look down on others, therefore she did not mind staying.
 
Apparently, the word of Jesus seems to sound a bit tough. An example was when Jesus was twelve and stayed alone in the Temple, his parent found him until three days later. 

“His mother said to him, "Son, why have you done this to us? Your father and I have been looking for you with great anxiety." And Jesus said to them, "Why were you looking for me? Did you not know that I must be in my Father's house?"” (Luke 2:48-49)

At last, “He went down with them and came to Nazareth, and was obedient to them; and his mother kept all these things in her heart.” (Luke 2:51)

At the wedding in Cana, “The mother of Jesus said to him, "They have no wine."
(And) Jesus said to her, "Woman, how does your concern affect me? My hour has not yet come."” (John 2:3-4)

To show his love to his mother, Jesus implemented the first miracle by turning the water into wine even though his hour has not arrived.

This time, Jesus spoke to her, “For saying this, you may go. The demon has gone out of your daughter.” (Mark 7:29)

The Book of Job recorded, “Who doth great things and unsearchable and wonderful things without number.” (Job 5:9)
 
What Jesus would like to see is our absolute trust in Him.