Heb 8:10 For this is the covenant that I will make with the house of Israel after those days, saith the Lord; I will put my laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to me a people:
This has nothing to do with Christians...We are NOT the house of Israel and this is for ‘after those days’...You need to find out what ‘those days’ are...Words mean things in the bible...
This has EVERYTHING to do with Christians.
“The new covenant is here mentioned as being made with the house of Israel and with the house of Judah, since it was first offered to these two houses (Jer. 31:31–34). When the Jews turned down their religious privileges, “the kingdom of God” was taken from them (see on Matt. 21:33–43). The Christian church is the inheritor of the spiritual privileges and responsibilities that once belonged to literal Israel”
And that is a fact.
.......”The Christian church is the inheritor of the spiritual privileges and responsibilities that ‘once’ belonged to literal Israel”.....And that is a fact.”.......
That sounds almost like “Replacement Theology” but I’ll assume you’re referring instead to Believing Israel vs Unbelieving Israel.