Daniel 1:4

young men without blemish, handsome, gifted in all wisdom, knowledgeable, quick to understand, and qualified to serve in the king’s palace—and to teach them the language and literature of the Chaldeans.

Note That is, the Babylonians

BSB · Berean Standard Bible
Children in whom was no blemish, but well favoured, and skilful in all wisdom, and cunning in knowledge, and understanding science, and such as had ability in them to stand in the king’s palace, and whom they might teach the learning and the tongue of the Chaldeans.
KJV · King James Version
youths in whom was no defect, but well-favored, skillful in all wisdom, endowed with knowledge, understanding science, and who had the ability to stand in the king’s palace; and that he should teach them the learning and the language of the Chaldeans.
WEB · World English Bible
youths in whom was no blemish, but well-favored, and skilful in all wisdom, and endued with knowledge, and understanding science, and such as had ability to stand in the king’s palace; and that he should teach them the learning and the tongue of the Chaldeans.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

in whom
Leviticus 21:18–21; Leviticus 24:19, 20; Judges 8:18; 2 Samuel 14:25; Acts 7:20; Ephesians 5:27
and skilful
Rather, as Houbigant renders, "apt to understand wisdom, to acquire knowledge, and to attain science;" for it was not a knowledge of the sciences, but merely a capacity to learn them, that was required.
Daniel 2:20, 21; Daniel 5:11; Ecclesiastes 7:19; Acts 7:22
ability
Daniel 1:17–20; Proverbs 22:29