Today is the heart of the chapter, and Paul gives us three reasons the body of a believer is not his own to spend as he likes. Listen first:

“Dont you know that your bodies are part of the body of Christ? Is it right for me to join part of the body of Christ to a prostitute? No, it isnt! Dont you know that a man who does that becomes part of her body? The Scriptures say, ‘The two of them will be like one person. But anyone who is joined to the Lord is one in spirit with him.” (1 Corinthians 6:15–17, CEV)