You need to read and study your Bible.
Matthew 15:26-28
Jesus answered, “It is not right to take the children’s bread and give it to the dogs.”
In Mark 7:27. In other words, Jesus is saying: “my mission is to Israel; I’m here for the children, not for the dogs; I’m here for the Jews, not for the Gentiles.”
Later Jesus changed this.
Where?
Even Jesus changed as He grew and developed in the Spirit of Our Father. At first, He thought His message was only for the Jews. But even as even a dog is worthy of crumbs from his master’s table, Jesus realized His message was for everyone.
Matthew 15:26-28 Jesus answered, “It is not right to take the children’s bread and give it to the dogs.” In Mark 7:27. In other words, Jesus is saying: “my mission is to Israel; I’m here for the children, not for the dogs; I’m here for the Jews, not for the Gentiles.” Later Jesus changed this.
Wrong again. While Hebrews 13:8 refers to the unchanging Divine nature of Christ and oneness in Being with the father, and not as if He was always a babe, and due to His incarnation the Lord was learning as child, He "grew, and waxed strong in spirit, filled with wisdom," with the doctors of the law being " astonished at his understanding and answers," ( (Luke 2:40,47) child yet He is never shown to be mistaken nor ignorant in His ministry, except for the actual day and hour of His second coming, (Matthew 24:36) as there is an order in the Triunity of God.
And rather than Jesus being mistaken about what He death would accomplish, being ignorant of the prophecies regarding the Gentiles coming to faith, and only later realizing His message was for everyone, the Lord Jesus stated that "As the Father knoweth me, even so know I the Father: and I lay down my life for the sheep. And other sheep I have, which are not of this fold: them also I must bring, and they shall hear my voice; and there shall be one fold, and one shepherd." (John 10:15-16)
And the episode with the Greek Syrophenician women was not that of Jesus being ignorant of God's grace extending to her, nor any attempt to shun her, as instead the Lord was affirming that the grace of God did indeed extend to her, and in context, the Lord was actually reproving His disciples who wanted the Lord to send her away, (Matthew 15:23) since she was considered inferior to them as having no conventantal right to Divine aid.
And which status the Lord affirmed as a demonstration of her heart - and the word for “dog” can mean “puppy” - and likewise God Himself called Jacob/Israel the patriarch a “worm” (Isaiah 41:14) for law-breaking sinners we are, yet in both cases this makes the favor of God more profound. In this case the Lord reveals to His disciples what they need, which is humility in the light of their condition as sinners, while that God never turned away humble souls of faith. For the women takes no offence at her conventantal status but acknowledges this and responds in faith regardless, and thus receives her miracle, thus teaching His disciples what matters most. Praise God.
Thus, your attempt to elevate your extra-Scriptural private revelation as being from God by making the Lord ignorant of this fundamental aspect of the plan of God is consistent with your presumption.