"Do you not know that your bodies are temples of the Holy Spirit, who is in you, whom you have received from God? You are not your own; you were bought at a price." (1 Corinthians 6:19-20)
Paul is astonished that Corinthian believers are taking their disputes to pagan courts. Do they not know that the saints will judge the world? If the world is to be judged by them, are they not competent to judge trivial cases? He is not saying Christians never need legal recourse, but that disputes between believers about property and money should be resolved within the community rather than paraded before unbelievers. The very fact that you have lawsuits among you means you have been completely defeated already. Why not rather be wronged? Why not rather be cheated? Instead you wrong and cheat, and you do this to your brothers and sisters. The willingness to absorb injustice rather than litigate it is itself a form of the Gospel: the one who was wronged by everyone and litigated nothing.
The closing argument of the chapter addresses sexual immorality directly. The body is not meant for sexual immorality but for the Lord, and the Lord for the body. Do you not know that your bodies are members of Christ himself? The sexual union of the body is not merely a physical act; it is a union of persons, and the Christian's body is already united to Christ. To join a member of Christ to a prostitute is unthinkable. Every other sin a person commits is outside the body, but the sexually immoral person sins against their own body. Then the definitive statement: Do you not know that your bodies are temples of the Holy Spirit, who is in you, whom you have received from God? You are not your own; you were bought at a price. Therefore honour God with your bodies. The Catechism grounds the theology of chastity precisely here: the body of the baptised person is a temple of the Holy Spirit, and the virtue of chastity is the honouring of that temple (CCC 2519).
Brothers and sisters, you were bought at a price. Your body is not your own. The culture insists that your body is entirely your own to do with as you choose. Paul insists the opposite: your body has been redeemed at the cost of Christ's blood and indwelt by the Holy Spirit. The moral consequence is not restriction but dignity: honour God with your body, because it is the temple of the Spirit and the member of Christ.
Lord God, our bodies are temples of your Holy Spirit. We were bought at a price. Teach us to honour you with our bodies: in how we treat them, in what we do with them, in what we refuse to do with them. Let every choice we make about our physical lives be a form of worship. Through Christ our Lord. Amen.