Well done, at least you can see the powerful distinction between Jew and Gentile in the scripture.
You are reading the scripture and that is obvious by your reply.
The Passover was paramount in it's fulfillment for the Jews in Egypt and in Israel.
Jesus arrived in Israel and only for Israel in that fulfillment of both the Mosaic law and the prophets.
Jesus was only sent to Israel and not to any other country (Matthew 15:24).
Psalm 147:19–20: "He has revealed his word to Jacob,
his laws and decrees to Israel. He has done this for no other
nation;
they do not know his laws."
Gentiles are secondary all the way through the scripture and even into the letter of the Romans.
Gentiles are grafted in as a wild olive tree into the root which was Christ.
Romans 11:17
But if some of the branches were broken off,
and you, being a wild olive,
were grafted in among them and became
partaker with them of
the rich root of the olive tree.
Gentiles never had the law and are invited into a new covenant by the shed blood of Jesus Christ.
Luke 22:20
And in the same way He took the cup after they had eaten, saying, “This cup which is poured out for you is
the
new covenant in My blood."
It is not easy to travel through the scripture and arrive into the new covenant untouched by historical theology.