If Jesus is the light in Genesis 1, then why did God say, "Let there be light"? Why does the church celebrate marriage, but not singleness? What is the best order to read through the Gospels? How do we know if Revelation should be in the Bible or not? What does the Bible say about killing in self defense? Do angels still make themselves visible and talk to people? Todd digs into the mailbag to answer your questions sent to [email protected] in today's Mailbag Friday episode.