TSB 100.1
(Testimonies on Sexual Behavior, Adultery, and Divorce 100.1)
Origin of Impure Acts—None can glorify God in their body, as He requires, while they are living in transgression of the law of God. If the body violates the seventh commandment, it is through the dictation of the mind. If the mind is impure, the body will naturally engage in impure acts. Purity cannot exist in the soul of one who yields his body to impure acts. If the body is serving lust, the mind cannot maintain consecration to God. To preserve a sanctified mind, the body must be preserved in sanctification and honor. The mind will then serve the law of God, and yield willing obedience to all its claims. Then, with the apostle, such can yield their members as instruments of righteousness unto God.... (TSB 100.1) MC VC