Having begun this chapter talking about the duty of the believer to respect and submit to government, Paul now turns his attention to the believers duty as he lives out his daily life. While government passes laws that are designed to protect and control society, the Christian has a duty to live out the life of Christ as he passes through this world. That is the emphasis of these verses.
If you were observant as we read the text, you noticed that Paul uses the language of haste and urgency. He is telling us that the duties mentioned here are not to be put off for another day, but are to be carried out every day as the believer lives his or her life in the world.
Let's take a few minutes this evening to consider The Believer's Spiritual Duty.