'Trained' in the Bible

Then he told them, "That is why every scribe who has been trained for the kingdom from heaven is like the master of a household who brings both new and old things out of his treasure chest."

But solid food is for mature people, whose minds are trained by practice to distinguish good from evil.

No discipline seems pleasant at the time, but painful. Later on, however, for those who have been trained by it, it produces a harvest of righteousness and peace.

With eyes full of adultery, they cannot get enough of sin. They seduce unsteady souls and have had their hearts expertly trained in greed. They are doomed to a curse.