I believe I understand where you are coming from but perhaps not completely. It appears you are Jewish but also might be part of the Noachide sect?
(Jer 31:31 KJV) 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 must be distinguished here are the TWO different houses and the TWO different peoples.
It's "no" on both accounts. I am neither Jewish nor Noahide. I was babptized Chirstian (East. Orthodox), and I am not necessarily professing my beliefs but exposing what others who are also qualified (Jews) have to say about their own religion and scripture.
What must be distinguished here are the TWO different houses and the TWO different peoples
They were not different peoples, but members of the 12 tribes.