Romans 11:7

for they had not gained any insight about the loaves, but their heart was hardened.

So then He has mercy on whom He desires, and He hardens whom He desires.

but Israel, pursuing a law of righteousness, did not attain that law.

For not knowing about the righteousness of God and seeking to establish their own, they did not subject themselves to the righteousness of God.

For I do not want you, brothers, to be uninformed of this mystery—so that you will not be wise in your own estimation—that a partial hardening has happened to Israel until the fullness of the Gentiles has come in;

But their minds were hardened; for until this very day at the reading of the old covenant the same veil remains unlifted, because it is brought to an end in Christ.

being darkened in their mind, alienated from the life of God because of the ignorance that is in them, because of the hardness of their heart.