The wallpaper is usually a collection of nature photos of scenes like El Capitan, the immense granite monolith in Yosemite National Park.
The folks at Utmost Wisdom have taken that idea of beautiful high-rez images and paired them with quotes from the Bible to create Christian Wallpapers.
One example is a high-angle photo of a city street that stretches in a straight line until it reaches the horizon. The superimposed quote is from the Book of Jeremiah:
For I know the thoughts that I think toward you, says the LORD, thoughts of peace and not of evil, to give you a future and a hope.Christian Wallpapers from Utmost Wisdom is available as a free download for Android phones and tablets in the Google Play Store.