Daniel 1:4
1:4 young men in whom there was no physical defect and who were handsome, well versed in all kinds of wisdom, well educated and having keen insight, and who were capable of entering the king’s royal service – and to teach them the literature and language of the Babylonians.
Daniel 10:16
10:16 Then one who appeared to be a human being was touching my lips. I opened my mouth and started to speak, saying to the one who was standing before me, “Sir, due to the vision, anxiety has gripped me and I have no strength.