Imagine you are making a batch of cookies.  You mix the butter, sugars, and eggs together.  You fold in the flour, salt, and baking powder.  Next you stir in the chocolate chips.  Lastly you add in a cup of mustard.  You then spoon out your dough.  Yes, I know, you are stuck back at the mustard.  Why?  Because it would ruin some perfectly delicious cookies!
Paul remind us that our bodies are the temple of the Holy Spirit.  Once we enter into a personal relationship with Christ, the Spirit dwells within us.  In 1st Corinthians 6, Paul is addressing the sexual immorality that has crept into the church there.  It is the mustard that has been added to the mix.  For Christians today, we all struggle with sin.  No one follows the ‘recipe’ that Jesus provided 100% of the time.  We all struggle.  Our vices and temptations may vary, but we all struggle.  Whatever our fancy, these sins add the wrong ingredients to our lives.
Paul also goes on to remind the Corinthians and us that we were all bought with a price.  He calls us to remember the physical and emotional price that Jesus paid for the forgiveness of our sins.  His body and blood were a gift to us all for the redemption of our sins.  Paul wants the Corinthians and us to see our physical connection to Christ and to realize the price paid to keep that connection open.  Once we enter into that relationship, our body is joined to Christ through the indwelling of the Holy Spirit.  He urges them and us to live to honor that connection.  May we honor God in all we do and say, bringing glory to His name!
Scripture reference: 1 Corinthians 6: 12-20