'Adviser' in the Bible

Now Abimelech came to him from Gerar with Ahuzzath his adviser and Phicol the commander of his army.

While he was offering the sacrifices, Absalom sent for David’s adviser Ahithophel the Gilonite, from his city of Giloh. So the conspiracy grew strong, and the people supporting Absalom continued to increase.

So Hushai, David’s personal adviser, entered Jerusalem just as Absalom was entering the city.

Azariah son of Nathan, in charge of the deputies;Zabud son of Nathan, a priest and adviser to the king;