Or do you not know that your body is a temple of the Holy Spirit within you, whom you have from God? You are not your own,
19. Know ye not that your body He makes use of two additional arguments, in order to deter us from this filthiness. First, That our bodies are temples of the Spirit; and, secondly, that the Lord has bought us to himself as his property.
The twelfth verse and former part of the thirteenth seem to relate to that early dispute among Christians about the distinction of meats, and yet to be prefatory to the caution that follows against fornication. The connection seems plain enough if we attend to the famous determination of the apostles, Acts 15, where the prohibition of certain foods was joined with that of fornication.
Commenting on 1 Corinthians 6:12-20
What? know ye not that your body is the temple of the Holy Ghost,.... What is said in Co1 3:16 of the saints in general, is here said of their bodies in particular. The Holy Spirit, in regeneration and sanctification, when he begins the good work of grace on a man, takes possession of his whole person, soul and body, and dwells therein as in his temple.