Matthew 21:43

διὰ τοῦτο, introducing the application of the oracle, and implying that the persons addressed are the builders = therefore. ἡ βασιλεία τ. θ.: the doom is forfeiture of privilege, the kingdom taken from them and given to others. ἔθνει, to a nation; previously, as Paul calls it, a no nation (οὐκ ἔθνει, Romans 10:19), the reference being, plainly, to the heathen world. ποιοῦντι τ. κ. α.: cf. Matthew 3:8; Matthew 3:10; Matthew 7:17, bringing forth the fruits of it (the kingdom). The hope that the new nation will bring forth the fruit is the ground of the transference. God elects with a view to usefulness; a useless elect people has no prescriptive rights.