The seventh commandment is a well known part of the Ten Commandments, partially due to its brevity, “You shall not commit adultery” (Exod 20:14). Sexual purity is often viewed by the culture as an outdated ethic, but the concept of purity has an even greater significance today as the culture fails model any semblance of purity, duty, or devotion. If there was ever an appropriate discussion for the current generation of Americans it has to do with the seventh commandment. The theological reality behind the seventh commandment is purity. Purity has the idea of being unmixed. In the case of adultery, a husband or wife is not completely devoted to his or her spouse. Adultery is the absence of complete devotion. In adultery there is a mixing of different desires and lusts. The absence of purity (i.e., unmixed devotion) is why Israel is commonly condemned in the prophets. Israel is…