Cross Inscriptions

While reading John Eliot Gardiner's Bach: Music in the Castle of Heaven a few years ago, I learned about cross inscriptions in music.  Four notes are arranged so that they resemble a cross.  Here's the diagram from the book, illustrating Bach's crosses in the third movement of Christ lag in Todesbanden, BWV 4:

As I understand it, the conceit is that when the first note is connected to the fourth and the second note connected to the third, the lines form a cross shape (viewed at an angle):

Since learning about this, I've found cross inscriptions in a number of hymn tunes, although they don't always connect to the hymn texts.  I've tagged relevant posts with "cross inscriptions."