Daniel
Daniel 1:19ESV·traditional attribution

And the king spoke with them, and among all of them none was found like Daniel, Hananiah, Mishael, and Azariah. Therefore they stood before the king.

Matthew Henry Presbyterian @wholebiblehenry

Concerning Daniel and his fellows we have here, I. Their great attainments in learning, Dan 1:17. They were very sober and diligent, and studied hard; and we may suppose their tutors, finding them of an uncommon capacity, took a great deal of pains with them, but, after all, their achievements are ascribed to God only.

Commenting on Daniel 1:17-21

John Gill Reformed Baptist @doctorgill

And the king communed with them,.... He asked them several questions upon the several articles of literature in which they had been educated, to try and see what proficiency they had made; he discoursed with them on various topics of learning, that he might be able to form a judgment of them, and of their capacities, and what employments under him they would be most fit for, and capable of.

Jamieson-Fausset-Brown Reformed @jfbcommentary

stood . . . before the king--that is, were advanced to a position of favor near the throne.