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.
An employer's statement that a claimant was insubordinate is not enough, in and of itself, to support a finding of discharge for misconduct. The employer's statement is a conclusion, derived from his or her perception of what transpired, and represents only one viewpoint. The acts which led to the separation, and the claimant's reason for doing (or not doing) the acts will determine if insubordination exists in that separation.