'Personal' in the Bible

So Joseph found favor in his sight and became his personal servant; and he made him overseer over his house, and all that he owned he put in his charge.

The king appointed for them a daily ration from the king’s choice food and from the wine which he drank, and appointed that they should be educated three years, at the end of which they were to enter the king’s personal service.

The king talked with them, and out of them all not one was found like Daniel, Hananiah, Mishael and Azariah; so they entered the king’s personal service.