This treatment of the International Sunday School Lesson is written by Sam E. Stone, former editor of CHRISTIAN STANDARD. ______ By Sam E. Stone Key passages from the book of Ephesians have been considered this month, following the theme, “Victory in Jesus.” Chapter 5 contains guidelines for Christian behavior in a pagan world. Today”s background Scripture begins in v. 15. Even before this, however, Paul warned about dangers such as sexual immorality, impurity, greed, obscenity, and foolish talk (vv. 3-7). The first section of our printed text is addressed to the whole church (vv. 18-21). All Christians must be careful