Deuteronomy 4:31

For the Lord thy God is a merciful God
In Christ, in whom he has proclaimed his name as such, of which Moses had a comfortable view, ( Exodus 34:6-8 ) and therefore could attest it from his own knowledge and experience:

he will not forsake thee;
though in a strange country, but bring them from thence into their own land again, and favour them with his gracious presence in his house and ordinances:

neither destroy thee;
from being a people; and in a very wonderful manner are they preserved among the nations of the earth to this day:

nor forget the covenant of thy fathers, which he sware unto them;
that a Saviour should come and turn away ungodliness from them, and take away their sins; see ( Romans 11:26 Romans 11:27 ) .