Romans 11:28-29

²⁸ Concerning the gospel they are enemies for your sake, but concerning the election they are beloved for the sake of the fathers.

²⁹ For the gifts and the calling of God are irrevocable.

enemies for your sake — God is judicially opposed to the Jews because of their disobedience, and owing to this, He is bringing Gentiles into the mercy from which Israel as a nation has been temporarily excluded.

for the fathers’ sakes — because of God’s covenant promises to the fathers.

gifts — (Romans 9:4-5)

calling — divine relationship

without repentance — God is immutable. His promises don’t change based on the attitude of men but will be fulfilled.

as touching the election — believing remnant is loved

for (verse 29) — continues the thought at the end of verse 28.