You will closely note you gave disregard in highlighting the words?
(Which He Foreknew)
God has not cast away his people, the "Remnant Elect" chose Jew which God foreknew, who will accept the finished work on Calvary and be added to the Church, the Israel Of God
Roman's 11:2KJV
2 God hath not cast away his people
which he foreknew. Wot ye not what the scripture saith of Elias? how he maketh intercession to God against Israel saying,
As scripture clearly teaches, Israel will not obtain salvation but will be blinded, only the chosen "Remnant Elect" will be saved and "Added To The Church", Gods Israel
All Israel Will Be Saved, When The Last Soul Has Been Added To The Church, The Israel Of God
Romans 11:5-8KJV
5 Even so then at this present time also
there is a remnant according to the election of grace.
6 And if by grace, then is it no more of works: otherwise grace is no more grace. But if it be of works, then it is no more grace: otherwise work is no more work.
7 What then?
Israel hath not obtained that which he seeketh for; but
the election hath obtained it, and the rest were blinded.
8 (According as it is written, God hath given them the spirit of slumber, eyes that they should not see, and ears that they should not hear

unto this day.