'Training' in the Bible

And the king assigned to them {his daily portion} from the fine food of the king, and from {the wine that he drank}, and [instructed that] {they were to be educated for three years}. And at the end [of] their [training], {they were to be stationed} {before} the king.

Then at the end of the training period that the king had established, the chief officer brought them in before Nebuchadnezzar.