I believe God's purpose was and is to make himself known
Deuteronomy 4:35 You were shown these things so that you might know that the Lord is God; besides him there is no other.
Deuteronomy 29:6 You ate no bread and drank no wine or other fermented drink. I did this so that you might know that I am the Lord your God.”
Joshua 4:24 He did this so that all the peoples of the earth might know that the hand of the Lord is powerful and so that you might always fear the Lord your God.”
This did not occur under the first agreement. Jeremiah 11:10 They have returned to the sins of their ancestors, who refused to listen to my words. They have followed other gods to serve them. Both Israel and Judah have broken the covenant I made with their ancestors.
However God cannot change.
It is my belief that the purpose of God for the children of Israel has not, nor will ever change.
Joshua 23:14 “Now I am about to go the way of all the earth. You know with all your heart and soul that not one of all the good promises the Lord your God gave you has failed. Every promise has been fulfilled; not one has failed.
Psalm 105:9 you his servants, the descendants of Abraham, his chosen ones, the children of Jacob.
Matthew 3:9 And do not think you can say to yourselves, ‘We have Abraham as our father.’ I tell you that out of these stones God can raise up children for Abraham.
Luke 3:8 Produce fruit in keeping with repentance. And do not begin to say to yourselves, ‘We have Abraham as our father.’ For I tell you that out of these stones God can raise up children for Abraham.
Romans 9:4 even us, whom he also called, not only from the Jews but also from the Gentiles? 25 As he says in Hosea: “I will call them ‘my people’ who are not my people; and I will call her ‘my loved one’ who is not my loved one,”
26 and,“In the very place where it was said to them, ‘You are not my people,’ there they will be called ‘children of the living God.’”
Galations 3:7 Understand, then, that those who have faith are children of Abraham.Understand, then, that those who have faith are children of Abraham.
John 17:3 Now this is eternal life: that they know you, the only true God, and Jesus Christ, whom you have sent.