I believe that your understanding is wrong. It is my belief that Jesus did no such thing.
“I was not sent except to the lost sheep of the House of Israel.”
--Matthew 15:24
The woman came and knelt before him. “Lord, help me!” she said.
He replied, “It is not right to take the children’s bread and toss it to the dogs.”
“Yes it is, Lord,” she said. “Even the dogs eat the crumbs that fall from their master’s table.”
Then Jesus said to her, “Woman, you have great faith! Your request is granted.”
And her daughter was healed at that moment.
--Matthew 15:22-28
“And when you pray, do not heap up empty phrases as the Gentiles do, for they think that they will be heard for their many words.”
--Matthew 6:7
By the way, my understanding is
often wrong. When it comes to reading history from a distance of 2,000 years,I can never be so arrogant that I can claim I am absolutely right.
Nor can I prove it.