Jesus was not advocating the end of even the minutest detail of the Law. “Amen, I tell you, until heaven and earth pass away, not one jot nor title shall ever pass from Torah until all things come to pass.” (Matthew 5:18). Jot and title are referring to the details of Hebrew as written on scrolls.
“‘But this is the new covenant that I will make with the house of Israel after those days, declares the Lord: I will put my law within them, and I will write it on their hearts. And I will be their God, and they shall be my people. (Jeremiah 31:33).
We also have scripture that tells us to not change scripture in any way: You shall not add to the word which I am commanding you, nor take away from it, that you may keep the commandments of the Lord your God which I command you.(Deut. 4:2) Whatever I command you, you shall be careful to do; you shall not add to nor take away from it (Deut. 12:32). As well as Rev. 22:18.
So, we have scripture that says I will make a new covenant, and do not change one word of scripture. How do we make new without making any change? For that answer, let’s look to Noah and Abraham.
Genesis 7:1-2 Then the LORD said to Noah, Take with you seven pairs of every kind of clean animal, a male and its mate, and one pair of every kind of unclean animal, a male and its mate.. Now, most of us just continue to read the story and Never stop to notice that Noah, even before the Torah laws of Kosher were given to Moses, Noah had discernment to know the difference between kosher and non-kosher meat!
And then we have Abraham, who circumcised his son Isaac on the 8th day, before the Torah law of circumcision was given to Moses! Genesis 21:4- When his son Isaac was eight days old, Abraham circumcised him, as God commanded him. After Moses: Lev. 12:3- And in the eighth day the flesh of his foreskin shall be circumcised. Here we have Abraham doing a commandment prior to the Law of Moses.
How do we explain how Noah and Abraham followed the Law even before it was written? Yes, God commanded them, but also, they had the covenant law in their heart and minds to do what was right and Godly. They didn’t need the tablets to know God’s Will because the Law was written within their souls. Once the Messiah comes, we too will have the covenant in our hearts and minds as Noah and Abraham did. This is the New Covenant .. when we are advanced and holy enough to know in our hearts and mind what God’s Will is and we won’t need a book to tell us as we do now.