Who was Jesus peace be upon him , Send For ?

New King James Version

“Come now, and let us reason together,”

John 8:31-32  New International Version

31 To the Jews who had believed him, Jesus said, “If you hold to my teaching, you are really my disciples. 32 Then you will know the truth, and the truth will set you free.”

New International Version  Luke 13:33

In any case, I must press on today and tomorrow and the next day—for surely no prophet can die outside Jerusalem!

https://www.jw.org/en/publications/bible/study-bible/books/matthew/15/

“God is not a man, that he should lie; neither the son of man, that he should repent” (KJV)  : Numbers 23:19a

“Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfill them” (Matthew 5:17). 

Incident from Bible : 

A non jewish woman   came and cried out: “Have mercy on me, Lord, Son of David. My daughter is cruelly demon possessed. But he did not say a word in answer to her. So his disciples came and began to urge him: “Send her away, because she keeps crying out after us.” 

To this Jesus peace be upon him replied according the bible : 

He answered: “I was not sent to anyone except to the lost sheep of the house of Israel. , the woman  persisted for help 

In answer he said: “It is not right to take the bread of the children and throw it to the little dogs.”

woman replied : Yes, Lord, but really the little dogs do eat of the crumbs falling from the table of their masters. she was then helped ... 

Matthew 10:5, 6

These 12 Jesus sent out, giving them these instructions: “Do not go off into the road of the nations, and do not enter any Sa·marʹi·tan city; 6  but instead, go continually to the lost sheep of the house of Israel.   

verses continue 

23 When they persecute you in one city, flee to another;i for truly I say to you, you will by no means complete the circuit of the cities of Israel until the Son of man arrives

So Jesus peace be upon him says i am send only for jews , he gives authority to his 12  disciples to spread his message under given set of constraints

Spread to who : jews 

do not go where ? he specifies geographical location then and then pin points to house of Israel 

End Date / time :  Untill Son of Man arrives ( Son of Man , is not spirit , its not himself as he is not Son of Man even by christian definition he is son of Holy Spirt or Son of Mother if you consider miraculous birth ) 

So who is son of man , is this the first time he talked about this FUTURE son of man ? if it was there would have been more description or disciples would have asked . 

This page explains Jesus peace be upon him explaining , about the  future prophet peace be upon him , and it explains why disciples  did not ask as they already have heard instructions about  

IS SON OF MAN Jesus peace be upon him ?

Son of Man is not common phrase used these days , to refer to a person or to say Human 

As per Jw.org  “Son of a human.” This expression occurs about 80 times in the Gospels. Jesus used it to refer to himself, evidently emphasizing that he was truly human, born from a woman, and that he was a fitting human counterpart to Adam, having the power to redeem humankind from sin and death.

Firstly the very base of Birth of Christ was that it was Miraculous , and with no Father , begotten son , by holy spirit - none of this combination fit Son of MAN it could be anyone except Adam peace be upon him and Jesus peace be upon him as only these 2 have attribute of being without father . Translator should do a better job of explaining why they Son of man is jesus peace be upon him as contradiction not only end in the phrase itself but also other verses 

Mark : 8;38 For whoever becomes ashamed of me and my words in this adulterous and sinful generation, the Son of man will also be ashamed of him when he comes in the glory of his Father with the holy angels.”

DID JESUS PEACE BE UPO HIM CHANGE LAWS OF MOSES PEACE BE UPON HIM ?

Mathew : 5 

Do not think I came to destroy the Law or the Prophets. I came, not to destroy, but to fulfill.

18  Truly I say to you that sooner would heaven and earth pass away than for one smallest letter or one stroke of a letter to pass away from the Law until all things take place.

19  Whoever, therefore, breaks one of these least commandments and teaches others to do so will be called least in relation to the Kingdom of the heavens. But whoever does them and teaches them will be called great in relation to the Kingdom of the heavens. 

20  For I say to you that if your righteousness does not surpass that of the scribes and the Pharisees, you will by no means enter into the Kingdom of the heavens.

27  “You heard that it was said: ‘You must not commit adultery.’k 28  But I say to you that everyone who keeps on looking at a woman l so as to have a passion for her has already committed adultery with her in his heart.

However, I say to you that everyone divorcing his wife, except on account of sexual immorality, makes her a subject for adultery, and whoever marries a divorced woman commits adultery