Daniel 1:18 TLB

[18] When the three-year training period was completed, the superintendent brought all the young men to the king for oral exams, as he had been ordered to do. King Nebuchadnezzar had long talks with each of them, and none of them impressed him as much as Daniel, Hananiah, Mishael, and Azariah. So they were put on his regular staff of advisors.