Daniel 1:5-8, 17, 20

The king assigned a daily ration for them from his finest food and from the wine which he drank. They were to be educated and nourished this way for three years so that at the end of that time they were [prepared] to enter the king’s service. Among them from the sons of Judah were: Daniel, Hananiah, Mishael, and Azariah. The commander of the officials gave them [Babylonian] names: Daniel he named Belteshazzar, Hananiah he named Shadrach, Mishael he named Meshach, and Azariah he named Abed-nego. But Daniel made up his mind that he would not defile (taint, dishonor) himself with the king’s finest food or with the wine which the king drank; so he asked the commander of the officials that he might [be excused so that he would] not defile himself. [Num 6:1-4; 1 Cor 10:21]

As for these four young men, God gave them knowledge and skill in all kinds of literature and wisdom; Daniel also understood all kinds of visions and dreams. [Luke 21:15; James 1:5-7]

In every matter of wisdom and understanding about which the king consulted them, he found them ten times better than all the [learned] magicians and enchanters (Magi) in his whole realm.