What does it mean that 'all Israel shall be saved'?

The phrase 'all Israel shall be saved' in Romans 11:26 underscores the idea that the true Israel consists of God's elect, which includes both Jews and Gentiles who believe in Christ. This counteracts the misconception that all who are ethnically Jewish will be saved. Instead, Paul is declaring that the fullness of God's people, those He has elected from throughout history, will ultimately be redeemed. The emphasis is on God’s faithfulness to His promises and the ultimate salvation of His elect, pointing to a spiritual Israel formed through faith in Christ, rather than through physical lineage.