How misused: The speaker misinterprets Romans 11 to argue for the perpetual, distinct, and physical covenantal status of ethnic Israel separate from faith in Christ. This leads to an assertion that Israel's role continues as a distinct entity of God's covenant work outside the New Covenant. They also use the olive tree metaphor in Romans 11 to weakly refute the doctrine of 'once saved, always saved,' implying that branches (believers) can be broken off due to unbelief, thus losing salvation.
Scripture's answer: Romans 11 does indeed speak of God's continued faithfulness to Israel and the ultimate salvation of 'all Israel' (Rom 11:26), but it does not separate Israel's covenantal status from faith in Yeshua. Paul explicitly states that 'not all who are from Israel are Israel' (Rom 9:6) and that a true Jew is one inwardly, by the Spirit (Rom 2:29). The olive tree metaphor (Rom 11:17-24) illustrates that Gentile believers are grafted into the spiritual heritage of Israel through faith, while natural branches (unbelieving Jews) are broken off due to unbelief. It also warns grafted-in Gentiles against arrogance, implying that they too can be broken off if they do not continue in God's kindness (Rom 11:22). This breaking off refers to a departure from faith and covenant relationship, not necessarily a 'loss of salvation' in the common systematic theological sense, but rather a warning against unbelief and spiritual apostasy. God's ultimate plan for 'all Israel' to be saved is through faith in Yeshua (Rom 11:23-26), integrating them into the one olive tree by faith, not maintaining a separate covenantal entity apart from the Messiah.