Chapter 4 concludes Daniel's account of Nebuchadnezzar's reign. Chapter 5 begins a few decades later with the account of the last day's of Belshazzar's reign (as coregent with King Nabonidus). When the hand of God interrupts a feast with a message of prophecy and judgment, Daniel is identified as one who can interpret the divine message.  

Supplementary study material, including the commentary excerpt read during the lesson, can be found here.