Towards the end of Deuteronomy, when God is renewing the nation’s covenant in Moab with a new generation of Israelites, Moses sets a choice before the people. The choice is life and good, death and evil. One road leads one way, the other in the opposite.
Obey God’s commandments as your fathers did not, Moses says, and you will live and multiply. These commandments are synonymous with “good”. Goodness is not a matter of personal opinion. God has declared what it is. No discussion is necessary. “Choose life,” Moses strongly recommends.