Deuteronomy 8:6

Therefore thou shalt keep the commandments of the Lord, thy God, to walk in His ways, as He pointed them out in the Law, and to fear Him; for the fear of the Lord, as the outgrowth of faith, is the source of all good works. The obligation of obedience is now further emphasized by an enumeration of the excellencies of the Land of Promise, where even the highest blessings, because so common, partook of the nature of the ordinary.