John Sammis was a Presbyterian minister from Indiana who wrote more than one hundred hymns of the Christian faith. One of them is called “Trust and Obey.” The chorus says, “Trust and obey, for there’s no other way, to be happy in Jesus, but to trust and obey.”
The sentiment of the hymn is what Moses was trying to convey to the generation of Israelites about to enter the Promised Land. The obedience of faith was something their parents and grandparents failed to exercise, which is why the Lord let them die in the wilderness.
Moses could not have been clearer with his countrymen. God’s blessings in the Promised Land were for those who obeyed Him. Likewise, curses or consequences would fall upon the disobedient (Deuteronomy 11:26-28).