First reading
Brothers and sisters, we ask and urge you in the Lord Jesus that, as you learned from us how you ought to live and to please God (as, in fact, you are doing), you should do so more and more.
For you know what instructions we gave you through the Lord Jesus. For this is the will of God, your sanctification: that you abstain from fornication; that each one of you know how to control your own body in holiness and honour, not with lustful passion, like the Gentiles who do not know God; that no one wrong or exploit a brother or sister in this matter, because the Lord is an avenger in all these things, just as we have already told you beforehand and solemnly warned you. For God did not call us to impurity but in holiness.
Therefore whoever rejects this rejects not human authority but God, who also gives his Holy Spirit to you.