Okay, so have you ever seen a king or a queen in a movie or a book? They usually have people around them who help them with important things, like making decisions or keeping track of money.
One of those people is called a zadok. A zadok is someone who is very important to the king or queen because they help make sure everything is running smoothly. They might also be in charge of things like making sure the king or queen looks good and is well taken care of.
Think of it like this: You know how you have a teacher at school who helps you learn, and a mom or dad at home who takes care of you? Well, a zadok is kind of like that, but for a king or queen. They help take care of the king or queen and make sure everything is going okay.
So, even though the word "zadok" might seem strange, it's really just a fancy word for someone who is very important to a king or queen.