I don't believe in demi-gods. Had whoever wrote Matthew, Mark, Luke and John actually read the Tanakh it would have been more believable. Oh Paul. Paul, Paul, Paul, Paul, Paul. Poor Paul. He created his own religion. So sad. I guess Genesis 4:7 meant nothing to Saul/Paul. Then again he is the Pharisees of Pharisees. How funny, There is no record of him being a Pharisee. And nobody would have given him the power to go outside Israel to take prisoner or kill "Christians". The Jewry had no legal power to do such. Furthermore, Psalm 119 is all about the Torah. All the rhetoric from Paul about the Law. First if was Jew then he would have known that a Jewish boy, an educated One, was At five years old, learning Scripture (what today is known as the Old Testament); at ten years, Mishnah; at thirteen, the commandments; at fifteen, Talmud. Simply said Paul misquotes or intentionally takes out of context any Scripture he refers to because at the time of his writing(s) any reference he or others made to Scripture meant the Tanakh. As for a New Covenant aka a New Testament
Jeremiah 31:31-
"Behold, the days come, saith the Lord, that I will make a new covenant with the house of Israel, and with the house of Judah" What happened to the House of Israel? Israel went into the Diaspora:
The Kingdom of Israel is the ten tribes (excluding Judah and Benjamin who constituted the southern Kingdom of Judah) - fell in 722 B.C.E. and its inhabitants were exiled by the Assyrians. the 10 tribes disappeared from history.
As I type this reply those ten tribes are in the Diaspora. Therefore Jeremiah 31 has yet to be fulfilled and if it were then this is what shall happen: Jeremiah 31:33, 34:

But this shall be the covenant that I will make with the house of Israel; After those days, saith the Lord, I will put my law in their inward parts, and write it in their hearts; and will be their God, and they shall be my people.

And they shall teach no more every man his neighbour, and every man his brother, saying, Know the Lord: for they shall all know me, from the least of them unto the greatest of them, saith the Lord: for I will forgive their iniquity, and I will remember their sin no more.
Who is this? The House of Israel.
The Church states the "Christian" writings are based upon the Scriptures of the Tanakh aka The Old Testament and it is held out that the OT is the foundation. Interestingly the writings from Matthew to Revelation didn't read the blueprint/drawing because that "house" the New Testament church purportedly built isn't built on the writings of Judaism.
I wish you the best of luck. I wish you great success.