Another clue may come from the meaning of the name Zerubbabel: The name Zerubbabel consists of two parts. The second part of this name is obviously the same as the Hebrew word for Babel / Babylon. The origin of the first part is a bit of a mystery.
Insubordination is generally a punishable offense in hierarchical organizations which depend on people lower in the chain of command doing what they are expected to do.
In the U.S. military, insubordination is covered under Article 91 of the Uniform Code of Military Justice. It covers disobeying lawful orders as well as disrespectful language or even striking a superior. The article for insubordination should not be confused with the article for contempt.