Anxiety is a result of envisioning the future without…

From the book Jesus Calling, by Sarah Young:

Anxiety is a result of envisioning the future without God.

Interesting factoid about the book Jesus Calling:

As of this summer, Jesus Calling had sold 9 million copies in 26 languages, and Publishers Weekly reported that it remained the No. 5 bestseller of the first half of 2013—for all books, not just Christian ones: It outsold Fifty Shades of Grey. (source)