God does not go back on His Word. He made a covenant with the Israelites and He stays true to His Word.
Romans 9:4-6 4 the people of Israel. Theirs is the adoption to sonship; theirs the divine glory, the covenants, the receiving of the law, the temple worship and the promises. 5 Theirs are the patriarchs, and from them is traced the human ancestry of the Messiah, who is God over all, forever praised![a] Amen.
Romans 11:1 1 I ask then: Did God reject his people? By no means! I am an Israelite myself, a descendant of Abraham, from the tribe of Benjamin. 2 God did not reject his people
And he fullfilled it 2000 years ago.