 That wasn't written in the 20th century. That was written in the early 19th century, before the Civil War even. It said, this be our motto in America, in our national anthem, in God is our trust. Abraham Lincoln. Abraham Lincoln's speech is the second inaugural. The Gettysburg Address used language straight out of the King James Bible. Then, in God we trust is added to our currency and into the Pledge of Allegiance in the 20th century.