Perseverance of the saints?

As we have seen, the motif of “wealth” evokes the superabundance thematized in Romans 5:12-21, and there are statements here that emphasize the priority of God’s call or gift (9:11; 11:2, 35) in a way that supports its lack of correspondence to human worth. If Paul traces here a final singularity in the purpose of God’s mercy (11:32), this is far from a principled insistence that God can only be benevolent: as we have seen, there are multiple references to God’s hardening, wrath, and severity, alongside God’s grace, both in relation to Israel (11:7—10) and in relation to Gentile believers (11:20—22). Paul’s threat that branches may be cut off if they do not remain in God’s goodness (11:17—24) calls into question any dogmatic, Augustinian commitment to “the perseverance of the saints.”—J. M. G. Barclay, Paul and the Gift, 557 (emphasis original)