Through thy greatness, i.e. through the greatness of thy power, which appeared most eminently in that work, as is noted, Deuteronomy 9:29.
Related Commentaries of Deuteronomy 9:26
Deuteronomy 9:26
26 I prayed therefore unto the LORD, and said, O Lord GOD, destroy not thy people and thine inheritance, which thou hast redeemed through thy greatness, which thou hast brought forth out of Egypt with a mighty hand.