Daniel 1:18-21

At the end of the time set by the king to bring all the young men in [before him], the commander of the officials presented them to Nebuchadnezzar. The king spoke with them, and among them all not one was found like Daniel, Hananiah, Mishael, and Azariah; so they were [selected and] assigned to stand before the king and enter his personal service. 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. And Daniel remained there until the first year of [the reign of] King Cyrus [over Babylon; now this was at the end of the seventy-year exile of Judah (the Southern Kingdom) in Babylonia, as foretold by Jeremiah]. [Ezra 1:1-3; Jer 25:11, 12; 29:10]