John Wesley on Deuteronomy 5:18

Neither shalt thou commit adultery - If thou hast not been guilty of any act of uncleanness, hath thy heart conceived no unclean thought? Hast thou not looked on a woman so as to lust after her? Hast thou not betrayed thy own soul to temptation, by eating and drinking to the full, by needless familiarities, by foolish talking, by levity of dress or behaviour? Hast thou used all the means which scripture and reason suggest, to prevent every kind and degree of unchastity? Hast thou laboured, by watching, fasting, and prayer, to possess thy vessel in sanctification and honour?