'Trained' in the Bible

A disciple is not above his teacher, but everyone who is fully trained will be like his teacher.

Then the Jews were amazed and said, “How does He know the Scriptures, since He hasn’t been trained?”

But solid food is for the mature—for those whose senses have been trained to distinguish between good and evil.

No discipline seems enjoyable at the time, but painful. Later on, however, it yields the fruit of peace and righteousness to those who have been trained by it.

They have eyes full of adultery and are always looking for sin. They seduce unstable people and have hearts trained in greed. Children under a curse!