'Trained' in the Bible

And he said to them, "For this [reason] every scribe who has been trained for the kingdom of heaven is like the master of the house who brings out of his storeroom new [things] and old [things]."

A disciple is not superior to [his] teacher, but everyone, [when he] is fully trained, will be like his teacher.

[By] teaching these [things] to the brothers, you will be a good servant of Christ Jesus, trained in the words of the faith and of the good teaching that you have followed faithfully.

But solid food is for the mature, who because of practice have trained their faculties for the distinguishing of both good and evil.

Now all discipline seems for the moment not to be joyful but painful, but later it yields the peaceful fruit of righteousness for those who are trained by it.

having eyes full of [desire for] an adulteress and unceasing from sin, enticing unstable persons, [and] having hearts trained for greediness. Accursed children!