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.
Insubordination is difficult -- if not impossible -- to define. Classifying insubordinate behavior by describing the way one employee responds to a supervisor's order doesn't work for all employees. Employees and supervisors interact with each other in different ways, even in the same work environment. The root cause of insubordination is lack of mutual respect.