Daniel 1:3-4

And the king spake unto Ashpenaz the master of his eunuchs, that he should bring {certain} of the children of Israel, and of the king's seed, and of the princes; Children in whom {was} no blemish, but well favoured, and skilful in all wisdom, and cunning in 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 tongue of the Chaldeans.