This study seeks to base Paul's language of sin in the socio-cultural context of his original letters. T.L. Carter draws on the work of social anthropologist Mary Douglas to conduct a cross-cultural analysis of the symbolism of the power of sin in the letters, examining thoroughly Douglas' "Grid and Group" model and defending its use as a heuristic tool for New Testament scholars. He also offers fresh insight into key passages from 1 Corinthians, Galatians and Romans.