Ambrosiaster, on Rom 11:22

“See then the goodness and the severity of God: towards them indeed that are fallen, the severity; but towards thee, the goodness of God, if thou abide in goodness, otherwise thou also shalt be cut off.”

“Paul testifies that God is good to the Gentiles because, although they followed idols and deserved to die, he waited for them in his patience, and even though they did not seek him, he called them and forgave their sins. But God is severe toward the Jews and has even blinded them because they rejected God's gift. Here Paul is referring to those Jews who because of their wickedness have been permanently blinded. For this reason he says that they have fallen, whereas the others whom I mentioned above have not fallen, even though they have sinned, because Paul shows that they have been blinded for a time. But God has been severe to these, because they have become eternally blind and apostate.”

Imported from an open dataset — not yet checked against the printed edition.