I use Morning Exercises by William Jay as part of my daily spiritual exercise. It is a very old book that I pinched from the Mhinisteir’s library as I felt I needed something heavy duty to complement my three chapters of daily Bible reading.
Anyway, because the book is very old, the reference to scripture is in roman numerals! I thought I was good at identifying roman numerals until one day, when I was stumped. The scripture reading for that day was Psalm lv. Assuming the l referred to a hundred, I started looking for the respective verse in Psalm 105! Of course it wasn’t there as lv means 55!!!! Time to brush up on my roman numerals!!!