This is a good article from last week's New Yorker. There's a little bit about the "code" words. Read the rest of it, it's good.
Also, do you read the New York Review of Books (not the New York Times Book Review)? There are a couple of good articles about Bush and Christian evangelism that touched on this topic.
Anyway, here's the link and the quote:
http://newyorker.com/critics/books/?040712crbo_booksBush has not been shy about displaying his faith. Shortly after September 11, 2001, the President came across Proverbs 21:15: “When justice is done, it brings joy to the righteous but terror to evildoers.” Soon, “evildoers” became his favorite term for Al Qaeda. Bush’s speechwriter, Michael Gerson, himself an evangelical, laces the President’s addresses with seemingly innocuous terms that the devout recognize as laden with meaning: “whirlwind,” “work of mercy,” “safely home,” “wonder-working power.” Phillips refers to a study by the religion scholar Bruce Lincoln, who identified, in Bush’s speech to Congress announcing the invasion of Afghanistan, allusions to Revelation, Isaiah, Job, Matthew, and Jeremiah. In private, Bush has been even more explicit. “George sees this as a religious war,” a family member told the Schweizers. “He doesn’t have a p.c. view of this war. His view of this is that they are trying to kill the Christians. And we the Christians will strike back with more force and more ferocity than they will ever know.” Phillips says that Bush has spoken of himself as an instrument of divine will.