"”Though shalt not commit adultery.” “Who so ever looketh on a woman to lust after her, hath committed adultery with her already in his heart.” In these two scriptures we have a complete definition of unchastity. The seventh commandment, with the Saviour’s commentary upon it, places clearly before us the fact that chastity requires purity of thought as well as of outward acts. Impure thoughts and unchaste acts are alike violations of the seventh commandment. As we shall see, also, unchastity of the mind is a violation of natural law as well as of moral law, and is visited with physical punishment commensurate to the transgression."