'Assistant' in the Bible

The fifth time that Sanballat sent his assistant to me in this way, he had an open letter in his hand.

I gave instructions that Shelemiah the priest, Zadok the scribe, and a certain Levite named Pedaiah be put in charge of the storerooms, and that Hanan son of Zaccur, the son of Mattaniah, be their assistant, for they were regarded as trustworthy. It was then their responsibility to oversee the distribution to their colleagues.