37Only to the land of the sons of Ammon you did not draw near,that is, to all the banks of the river Jabbok and the cities of the hill country, whatever the LORD our God had forbidden us.
Moses recalled the obedience of Israel, that they observed the Lord's will not only in attacking but also in sparing people. The Lord had forbidden Israel from taking the land of Ammon (see Deuteronomy 2:19).
37 Only to the land of the sons of Ammon you did not draw near, that is, to all the banks of the river Jabbok and the cities of the hill country, whatever the LORD our God had forbidden us.