Daniel 1:3-4

3And the king spoke unto Ashpenaz the chief of his eunuchs, that he should bring of the children of Israel, both of the royal seed and of the nobles,

4youths in whom was no blemish, and of goodly countenance, and skilful in all wisdom, and acquainted with knowledge, and understanding science, and such as had ability in them to stand in the king's palace, and whom they might teach the learning and the language of the Chaldeans.