Rom 11:7 What then? Israel failed to obtain what it sought. The elect obtained it, but the rest were hardened,
Rom 11:8 as it is written, "God gave them a spirit of stupor, eyes that should not see and ears that should not hear, down to this very day."
Rom 11:9 And David says, "Let their table become a snare and a trap, a pitfall and a retribution for them;
Rom 11:10 let their eyes be darkened so that they cannot see, and bend their backs for ever."
Rom 11:11 So I ask, have they stumbled so as to fall? By no means! But through their trespass salvation has come to the Gentiles, so as to make Israel jealous.
Rom 11:12 Now if their trespass means riches for the world, and if their failure means riches for the Gentiles, how much more will their full inclusion mean!
As Catholics, we pray for the fulfillment of Rom 11:12 and Rom 11:25, which you cited.
It is clear that Israel will be blinded so that gentiles would be saved. Verse 26 "so all Israel will be saved; just as it is written"Please continue reading Paul's (Sha'ul) letter to the Messianic
shalom b'SHEM Yah'shua
believers in Rome chapter 11 verses 25 - 29 as quoted above.