Romans 11:20
Granted. But they were broken off because of unbelief, and you stand by faith. Do not be arrogant, but be afraid. — Paul qualifies: yes, unbelief (apistia) caused the breaking off, and Gentile faith (pistis) accounts for standing—but this is God's doing, not Gentile achievement. The exhortation to fear (phobeomai) is not servile terror but reverent humility, the recognition that the same God who broke off branches can break off Gentiles.