And I will bring forth descendants from Jacob, and heirs from Judah; My elect will possess My mountains, and My servants will dwell there.
This is expounded by St. Paul, Rom 11:1-5, where, when, upon occasion of the rejection of the Jews, it is asked, Hath God then cast away his people? he answers, No; for at this time there is a remnant according to the election of grace. This prophecy has reference to that distinguished remnant.
Commenting on Isaiah 65:8-10
And I will bring forth a seed out of Jacob,.... Jerom says most understand this of Christ; and who indeed is called the seed of the woman, the seed of Abraham, the seed of David, and sprang from Jacob or Israel, and came out of the tribe of Judah; and may be fitly signified by the cluster, in which new wine and a blessing were...
seed--"the holy seed" (Isa 6:13), a posterity from Jacob, designed to repossess the Holy Land, forfeited by the sin of the former Jews. my mountains--Jerusalem and the rest of Judea, peculiarly God's (compare Isa 2:2; Isa 11:9; Isa 14:32). it--the Holy Land. elect-- (Isa 65:15, Isa 65:22).