It is specifically what belongs to one's neighbor and is not for sale, contrasted with something for sale, that is the focus of this command. A legitimate desire is not the same as coveting, which is an obsessive desire. Coveting is the root attitude from which every sin in word or deed against a neighbor springs (cf. Eph. 5:3). The five categories of the most valuable possessions the neighbor could have represent all that he has.
". . . none of the Ten Commandments reappear in the New Testament for this age of grace as Mosaic legislation. All of the moral principlesof the ten laws do reappear in the New Testament in a framework of grace."341
"The influence of the Ten Words on Western morality and law is beyond calculation. They have come to be recognized as the basis of all public morality."342
In view of this fact it is especially tragic that it is now illegal to post a copy of the Ten Commandments in any American public school classroom.