1 Corinthians 6:18-20

AUV(i) 18 Stay away from [any involvement in] sexual immorality. Every sin a person commits is outside [the realm] of his body; but the one who commits sexual immorality sins against his own body. [Note: Possibly this means that sex, because it requires the deepest and most complete commitment of human involvement, becomes a unique sin when its true purpose and expression are violated]. 19 Or, do you not know that your [physical] body is a temple [i.e., sanctuary] for the Holy Spirit, who lives in you and who was given to you by God? You do not belong to yourselves, 20 for you were bought [by God] for a price. So, honor God with your [physical] body.