Bible has a lot of nonsense, and tit was a reason why so many Christian denomination happened since the 100AD. There was also huge splits during late Antiquity and numerous heresies. Even Christian rulers realized that it is impossible to follow bible literally from Justinian to Charlemagne and developed own political, judicial, and economic laws to match some of the Christian interpretation.
The life during Roman era was not so great as people believe due Renaissance influence. Life expectancy in Roman times was around 33, bit higher than early medieval Europe or during 100 Years war, but still low. Rome experienced two centuries of stability, but eventually the economic and political system crippled after Marcomanni wars onward. Plagues of Cyprian, Justinian, and Antonius decimated millions. Skeletal bodies of the late antiquity shows deep problem with malnourishment. Except population of Rome and large cities, and the middle upper class, millions of Romans lived in poverty and were enslaved. They had much worse life survival prospect than free medieval peasant.
Since Renaissance, human population enjoyed continuous grow of living standard with some setbacks like 30 Years War, French Revolution, WWI & WWII or Great Recession. Nonetheless, the human race lives better with each subsequent generation. Even poor people today are better off than poor people in 1980. With present technology and social freedom, you would not last long during Great Depression or not to mention 19th century. Life is certainly not perfect nor fair, and we live somewhat in failed political and social systems; yet it is the best we had in the history of humanity.