Daniel 1:18-21

And at the end of the days which the king had appointed for bringing them in, the prince of the eunuchs brought them in before Nebuchadnezzar. And the king communed with them; and among them all was found none like Daniel, Hananiah, Mishael, and Azariah: therefore stood they before the king. And in every matter of wisdom and understanding, concerning which the king inquired of them, he found them ten times better than all the magicians and enchanters that were in all his realm. And Daniel continued even unto the first year of king Cyrus.