A.T. Robertson Commentary Romans 11:28

"As touching the gospel, they are enemies for your sake: but as touching the election, they are beloved for the fathers` sake." — Romans 11:28 (ASV)

As touching the gospel (κατα το ευαγγελιον). "According to (κατα with the accusative) the gospel" as Paul has shown in verses 11-24, the gospel order as it has developed.

Enemies (εχθρο). Treated as enemies (of God), in passive sense, because of their rejection of Christ (verse 10), just as αγαπητο (beloved) is passive.

As touching the election (κατα την εκλογην). "According to the election" (the principle of election, not as in verses 5f. the elect or abstract for concrete).

For the fathers' sake (δια τους πατερας). As in 9:4; 11:16f.