Two good posts from two different sources. One, why “avoid every appearance of evil”, the KJV translation of I Thessalonians 5:22, cannot possibly be the correct rendering (hint: did Jesus “avoid every appearance of evil”?):
Avoid Every Appearance of Evil?
Two, Os Guinness makes the case as to why as Christians we had better not be in favor of “prayer in public schools” (even though there will always be prayer in public schools, and no Court can ever remove it—and to say otherwise is to misunderstand prayer!):