Daniel 1:4-6

youths in whom was no defect, who were good-looking, showing intelligence in every branch of wisdom, endowed with understanding and discerning knowledge, and who had ability for serving in the king’s court; and he ordered him to teach them the literature and language of the Chaldeans. 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. Now among them from the sons of Judah were Daniel, Hananiah, Mishael and Azariah.