Daniel Chapter 1 Vs. 19

Three Years preparation

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. Dan. 1:19

communed with them... Questioned them (Dan. 1:20).

among them all... All the captives from all nations.

therefore stood they... All four Jews stood before the king to advise on state and other matters.