What is said of the fourth kingdom?

Answer

"And the fourth kingdom shall be strong as iron: forasmuch as iron breaks in pieces and subdues all things:
and as iron that breaks all these, shall it break in pieces and bruise." Verse 40.

How, according to prophecy, was Christ to conduct Himself when on trial?
What is a \"wind of doctrine\"?
Whom are all called upon to worship?
By what is the knowledge of sin?
What title was given to the fourth state of the church?
What were the colour and character of the fourth symbol?
Is Christ ever called an angel?

Questions & Answers are from the book Bible Readings for the Home Circle