Much like our current culture, morality in the Roman Empire was very low. Paul recognized that perfection is impossible, but striving to be holy is not. In 1 Thessalonians 4:7 Paul says, For God did not call us to be impure, but to live a holy life. Allowing sin to run unabated in our lives leads to harsh consequences; physically, emotionally, and Spiritually. Only through trusting in God and leading of the Holy Spirit can we combat the desire for sin in our lives.