The 400 Silent Years -- Introduction Part 2

Over 400 years elapsed between the close of revelation in the Old Testament ("Tanach") and the beginning of the New Testament. No prophet spoke.
Why the silence from Heaven, and was God really doing nothing?
Lots of history here, and strong lessons for us. This is the second part of the introduction.
For those interested, we will be following the major outline of Dr. Harry Ironside's book, "The 400 Silent Years."