If you dismiss Paul's words then you don't understand Christ. If he hadn't gone on the mission Gentiles wouldn't have gotten any messages until after 70AD. You should know that if you are a fan of Stephen. You never did say why you were a fan, was it for the sermon he gave to the same Jews from Matthew:23 or because he was killed by those same Jews?
Ac:7:58:
And cast him out of the city,
and stoned him:
and the witnesses laid down their clothes at a young man's feet,
whose name was Saul.
Ac:7:59:
And they stoned Stephen,
calling upon God,
and saying,
Lord Jesus,
receive my spirit.
Ac:7:60:
And he kneeled down,
and cried with a loud voice,
Lord,
lay not this sin to their charge.
And when he had said this,
he fell asleep.
Ac:8:1:
And Saul was consenting unto his death.
And at that time there was a great persecution against the church which was at Jerusalem;
and they were all scattered abroad throughout the regions of Judaea and Samaria,
except the apostles.