“We often suffer, but we are never crushed. Even when we don’t know what to do, we never give up.”
That’s 2 Corinthians 4:8 in the translation of the Contemporary English Version. And as most readers of this blog will know, 2 Corinthians was not written by Captain America.
The original source of the story is The Christian Post, and their article provides further information. The survey was apparently conducted by the American Bible Society.