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

Enemies (εχθρο). Treated as enemies (of God), in passive sense, because of their rejection of Christ (verse Romans 11:10), 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 Romans 11:5 the elect or abstract for concrete).

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