This God; who hath done this great work. Even unto death, i.e. whilst we have a being. Birth and life, and the several ages of life and death, are oft ascribed to churches and commonwealths, both in Scripture and in other authors. This promise was made to the old and earthly Jerusalem, upon condition of their obedience, wherein they failing so grossly, lost the benefit of it, but it is absolutely made good to the new and heavenly Jerusalem, the church of Christ.
Related Commentaries of Psalms 48:14
Psalms 48:14
14 For this God is our God for ever and ever: he will be our guide even unto death.